Failed to save the file to the "xx" directory.

Failed to save the file to the "ll" directory.

Failed to save the file to the "mm" directory.

Failed to save the file to the "wp" directory.

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Current File : /usr/share/ghostscript/Resource/Init/pdf_main.ps
% Copyright (C) 2001-2019 Artifex Software, Inc.
% All Rights Reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%
% Refer to licensing information at http://www.artifex.com or contact
% Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,
% CA 94945, U.S.A., +1(415)492-9861, for further information.
%

% pdf_main.ps
% PDF file- and page-level operations.

/.setlanguagelevel where { pop 2 .setlanguagelevel } if
.currentglobal //true .setglobal
pdfdict begin
/GS_PDF_ProcSet dup load def	% keep in pdfdict to hide it
userdict /GS_PDF_ProcSet undef

% Patch in an obsolete variable used by some third-party software.
/#? //false def

% Test whether the current output device handles pdfmark.
/.writepdfmarkdict 1 dict dup /pdfmark //null put readonly def
/.writepdfmarks {	% - .writepdfmarks <bool>
  currentdevice //.writepdfmarkdict .getdeviceparams
  mark eq { //false } { pop pop //true } ifelse
  systemdict /DOPDFMARKS known or
} bind executeonly def

% For simplicity, we use a single interpretation dictionary for all
% PDF graphics execution, even though this is too liberal.
/pdfopdict mark
  objopdict { } forall
  drawopdict { } forall
  /endstream { exit } bind executeonly
  (%%EOF) cvn { exit } bind	executeonly	% for filters
  /obj { (   **** Error: Content stream is not terminated by 'endstream'.\n)
         pdfformaterror
         (                Output may be incorrect.\n) pdfformaterror
       } bind executeonly
        % PDF 1.1 operators
  /BX { /BXlevel BXlevel 1 add store } bind executeonly
  /EX { /BXlevel BXlevel 1 sub store } bind executeonly
  /PS { cvx exec } bind executeonly
        % PDF 1.2 operators
  /BMC {
    /BMClevel BMClevel 1 add store
    pop
  } bind executeonly
  /BDC {
    /BMClevel BMClevel 1 add store
    exch /OC eq {
      dup type /nametype eq {
        PDFfile fileposition exch                      % pos /Name
        Page /Properties rget {
          ocg-is-visible not {
            OFFlevels BMClevel dup put
          } if
        } if
        PDFfile exch setfileposition
      } {
        pop
      } ifelse
    } {
      pop
    } ifelse
  } bind executeonly
  /EMC {
    OFFlevels BMClevel
    2 copy known {
       2 copy undef
    } if
    1 sub /BMClevel exch store
    pop
  } bind executeonly
  /MP { pop } bind
  /DP { pop pop } bind
  /- { 0  % Bug 690016
       (   **** Error: Invalid operator '-' is assumed to be the number 0.\n)
       pdfformaterror
       (               Output may be incorrect.\n) pdfformaterror
     } bind executeonly

  /Recursive_XObject_D 1 dict def

.dicttomark readonly def


% This dictionaty encapsulates all that is needed to generate pagelabel pdfmarks.
%
% This is provided by Leon Bottou for the benefit of the djvudigital device
% which is a device developed and maintained outside of Artifex, and which is
% not a contributed device.
%
% This device does not cope with the method used by pdfwrite to pass the pagelabels
% number tree as a 'blob' of data, but requires that the page labels be passed using
% a PAGELABEL pdfmark.
%
% We don't want to do that with pdfwrite because there is no mechanism in pdfmark syntax
% to pass a tree, which means we'd have to laboriously disassemble the pdfmarks for the
% page labels and rebuild a number tree for it. This would mean pattern matching each
% string passed via PAGELABEL to see if it could be defined as a continuation
% of the preceding string, uing prefixes. Its much easier for us just to pass the tree.
%
% Note that this code simply translates the PageLabels Number tree into a number of
% individual PAGELABEL pdfmarks, if used for pdfwrite this would result in a number
% tree which consists solely of leaf nodes, where each node has a string for its label.
% This can be considerably more verbose than the shorthand possible with a Page Label
% dictionary.
%
/pagelabeldict mark
  % (TEXT) .toLower (text)
  /.toLower {
      dup length 1 sub  -1 0 {
          1 index exch 2 copy get 2#00100000 or put
      } for
  } bind executeonly
  % int .cvAlpha (int in alphabetic base 26)
  /.cvAlpha {
      [ exch % construct an array of ASCII values, in reverse
        { % the remainder stays on the top of stack
            dup 0 eq { pop exit } if % quit if the value is zero
            dup 26 mod dup 0 eq { 26 add } if % so that the division is correct
            dup 64 add 3 1 roll sub 26 idiv % save the ASCII value and iterate
        } loop ]
      dup length dup string 3 1 roll
      dup -1 1 { % put the letters in a string
          4 copy sub exch 4 -1 roll 1 sub get put
      } for pop pop
  } bind executeonly
  % int  .cvRoman  (int in capital Roman numerals)
  % convert a positive integer to capital Roman numerals
  % return a decimal string if >= 4000
  /.cvRoman {
      dup 255 string cvs % start with the decimal representation
      exch 4000 lt { % convert only if Roman numerals can represent this
          dup length
          [ [ () (I) (II) (III) (IV) (V) (VI) (VII) (VIII) (IX) ]
            [ () (X) (XX) (XXX) (XL) (L) (LX) (LXX) (LXXX) (XC) ]
            [ () (C) (CC) (CCC) (CD) (D) (DC) (DCC) (DCCC) (CM) ]
            [ () (M) (MM) (MMM) ] ] % Roman equivalents
          () % append the Roman equivalent of each decimal digit to this string
          2 index  -1 1 {
              2 index 1 index 1 sub get
              5 index 5 index 4 -1 roll sub get
              48 sub get concatstrings
          } for
          4 1 roll pop pop pop
      } if
  } bind executeonly
  % style printers
  /PageStyle <<
    /D { 255 string cvs } bind executeonly
    /R { .cvRoman } executeonly
    /r { .cvRoman .toLower } executeonly
    /A { .cvAlpha } executeonly
    /a { .cvAlpha .toLower } executeonly >>
  % check whether we want to generate pdfmarks
  /wantpagelabelmarks {
      % WantsPageLabels means that pagelabels will be passed
      % using .pdfpagelabels and not using pdfmarks
    /WantsPageLabels /GetDeviceParam .special_op
    {pop pop //false}{//true} ifelse

    %% This is truly ugly.....
    %% GSView 5 redefines pdfmark and processes it itself. However if it gets
    %% a pdfmark it cannot cope with, it simply fails. Its not prepared to cope
    %% with PAGELABEL pdfmarks, so we don't want to send it to them. There's no
    %% way for us to fix GSView 5, its long out of any kind of support, but we do
    %% try not to break it. We happen to know that GSView 5 installs a GSview
    %% dictionary in userdict, so this test simply ensures we don't emit PAGELABEL
    %% pdfmarks if that dictioanry is present.
    userdict /GSview known {pop //false} if
  } bind executeonly
  % generate pagelabel pdfmark
  /dopagelabel {  % -- dopagelabel --
      << /S //null /P () /O 0 >> begin
      wantpagelabelmarks {
          Trailer /Root knownoget {
              oforce /PageLabels knownoget {
                  oforce Page# 1 sub
                  numogetle
                  { oforce
                    dup /S knownoget not { //false } if /S exch def
                    dup /P knownoget not { 0 string } if /P exch def
                    /St knownoget not { 1 } if exch sub /O exch def
                  } if
                  P Page# 1 sub O add PageStyle S knownoget { exec concatstrings } if
                  mark /Label 3 -1 roll /PAGELABEL pdfmark
              } if
          } if
      } if
      end
  } bind executeonly
.dicttomark readonly def

% ======================== Main program ======================== %

end			% pdfdict
userdict begin

/defaultfontname /Times-Roman def

% Make sure the registered encodings are loaded, so we don't run the risk
% that some of the indices for their names will overflow the packed
% representation.  (Yes, this is a hack.)
SymbolEncoding pop
DingbatsEncoding pop

% Redefine 'run' so it recognizes PDF files.
systemdict begin
/.runps /run load def
/run {
  dup type /filetype ne { (r) file } if
  % skip leading whitespace characters (actually anything less than or equal to <sp>)
  { dup ( ) .peekstring not { //false exit } if
    dup 0 get 32 le { pop dup read pop pop } { //true exit } ifelse
  } loop
  exch pop
  {
    % Appletalk PAP sends short strings with %! header expecting a response.
    % 'gv' swallows the %!PS line, then sends DSC comments beginning with %%
    % and also waits for a response. The following avoids those hangs.
    dup 2 string .peekstring pop dup (%!) eq exch (%%) eq or {
      cvx .runps
    } {
      dup 1023 string .peekstring pop
      % "1024 string" exceeds current %stdin buffer
      % Valid PDF file cannot be smaller than 400 bytes.
      (%PDF-) search {
        3 1 roll pop pop
        dup (%!PS) search not {
          length 0 ne {
            1 index exch readstring pop pop
            (%stderr) (w) file dup
            (   **** Warning: File has some garbage before %PDF- .\n)
            writestring flushfile
          } {
            pop
          } ifelse
          dup (%stdin) (r) file eq {
            % Copy PDF from stdin to temporary file then run it.
            //null (w+) /.tempfile .systemvar exec exch 3 1 roll
            % stack: tempname stdin tempfile
            64000 string
            {
              % stack: tempname stdin tempfile string
              2 index 1 index readstring
              exch 3 index exch writestring
              not { exit } if
            }
            loop
            pop exch closefile
            % stack: tempname tempfile
            dup 0 setfileposition
            dup
              runpdf
            closefile deletefile
          } {
              runpdf
          } ifelse
        } {
          pop pop pop pop cvx .runps % (%!PS) found first
        } ifelse
      } {
        pop cvx .runps % (%PDF-) not found
      } ifelse
    } ifelse
  } {
    closefile % file was empty
  } ifelse
} bind odef
currentdict /runpdfstring .undef

/runpdfbegin {		% <file> runpdfbegin -
   userdict begin
        % It turns out that the PDF interpreter uses memory more
        % effectively if it is run under at least one level of save.
        % This is counter-intuitive, and we don't understand why it happens,
        % but the improvement is significant.
   /PDFTopSave save def
   <</ProcessDSCComment //null>> setuserparams
   <</ProcessComment //null>> setuserparams
   %% Bug #696487, allow dict stack to grow without limit, as these PDF
   %% files have stupidly deep gsave nesting and we need a dictionary per gsave
   %% at the moment.
   %% Remove ths if bug #696511 is ever completed (move ExtGstate parameters into gstate)
   <</MaxDictStack -1>> setuserparams
   %% Bug #696567, same customer as above. Ths time they have a file with a page whch has
   %% 447000 ExtGState references (all of hwch contain no gstate!) Because we allocate
   %% these on the stack, allow the stack to grow indefinitely in order to accomodate
   %% such stupid files. Also move these lines from the end of the routine, so that
   %% the increases are in place before we call odfopen, which will build the
   %% resources and needs this definition in place.
   <</MaxOpStack -1>> setuserparams

   0 setobjectformat
   /Page# //null def
   /Page //null def
   /DSCPageCount 0 def
   /PDFSave //null def
   //pdfdict /GS_PDF_ProcSet get begin
   //pdfdict begin
   pdfopen begin
   /CumulativePageCount currentpagedevice /PageCount get def
} bind executeonly def

/runpdfpagerange {	% - runpdfpagerange <firstpage#> <lastpage#>
<</DisablePageHandler //true>> setpagedevice
   /PortfolioPage where {
     pop
     PortfolioPage cvi dup pdfpagecount add                  % a b+1
     /PortfolioPage dup load                                 % a b+1 /P ()
     (          ) 1 index  copy pop
     dup 3 index exch cvs pop                                % a b+1 /P (b+1)
     store
     1 sub                                                   % a b
     /FirstPage where { pop FirstPage <</DisablePageHandler //true>> setpagedevice} { 1 } ifelse
     /LastPage  where { pop LastPage  <</DisablePageHandler //true>> setpagedevice} {2000000000} ifelse  % a b fp lp
     2 index 2 index lt { % b < fp
       1e10
     } {
       3 index 2 index gt { % a > fp
         1
       } {
         1 index 4 index sub 1 add
       } ifelse
     } ifelse                                                % a b fp lp f
     3 index 2 index lt { % b < bp
       3 index 5 index sub 1 add  % b-a+1=count
     } {
       4 index 2 index gt {
         0
       } {
         1 index 5 index sub 1 add
       } ifelse
     } ifelse                                                % a b fp lp f l
     6 2 roll pop pop pop pop

     QUIET not {
       1 index 1 index gt {
         (Skipping the subfile.) = flush
       } {
           (Processing pages ) print 1 index =only ( through ) print dup =only
           (.) = flush
       } ifelse
     } if
   } {
     /PageList where {
       pop PageList
       (even) anchorsearch {
         pop length 0 gt {
           /runpdfpagerange /syntaxerror cvx signalerror
         } if
           /PDFPageList pdfpagecount 1 add array def
           2 2 pdfpagecount {
             PDFPageList exch 1 put
           } for
           1 pdfpagecount
           QUIET not {
             (Processing even-numbered pages\n) print
             (.) = flush
           } if
       } {
         (odd) anchorsearch {
           pop length 0 gt {
             /runpdfpagerange /syntaxerror cvx signalerror
           } if
           /PDFPageList pdfpagecount 1 add array def
           1 2 pdfpagecount {
             PDFPageList exch 1 put
           } for
           1 pdfpagecount
           QUIET not {
             (Processing odd-numbered pages\n) print 1 index =only ( through ) print dup =only
             (.) = flush
           } if
         } {
           %% validate string contents, check for digit comma or minus
           dup
           {
             dup 44 eq not {
               dup 45 eq not {
                 dup 48 lt 1 index 57 gt or {
                   /runpdfpagerange /syntaxerror cvx signalerror
                 } if
               } if
             } if
             pop
           }
           forall
           <</DisablePageHandler //true>> setpagedevice
           /PDFPageList pdfpagecount 1 add array def
           {
             (,) search {
               %% We now have (post) (,) (pre)
               exch pop %% get rid of the (,), leave the (post) as the string for the next iteration, deal with the section up to the comma
               (-) search {
                 %% Now we have (end) (-) (start)
                 exch pop %% get rid of the minus (end) (start)
                 0 exch {48 sub exch 10 mul add} forall
                 %% Make sure the start of the range is inside the number of available pages
                 dup pdfpagecount le {
                   exch
                   %% deal with a trailing '-' by replacing it with the number of pages in the file
                   dup length 0 eq {
                     pop pdfpagecount
                   }{
                     0 exch {48 sub exch 10 mul add} forall
                   } ifelse
                   1 exch %% start 1 end
                   %% Make sure the end of the range is inside the number of available pages
                   dup pdfpagecount gt {pop pdfpagecount} if
                   {PDFPageList exch 1 put} for
                 } {
                   %% start of range invalid, drop this range.
                   pop pop
                 }ifelse
               }{
                 %% no minus signs, must be a simple page number
                 0 exch {48 sub exch 10 mul add} forall
                 %% ensure its in the valid range of pages
                 dup pdfpagecount le {
                    PDFPageList exch 1 put
                 } {
                   pop
                 } ifelse
               } ifelse
             }{
               %% no commas separating pages, just the original string (), deal with its as a section, then exit the loop
               (-) search {
                 %% Now we have (end) (-) (start)
                 exch pop %% get rid of the minus (end) (start)
                 0 exch {48 sub exch 10 mul add} forall
                 %% Make sure the start of the range is inside the number of available pages
                 dup pdfpagecount le {
                   exch
                   %% deal with a trailing '-' by replacing it with the number of pages in the file
                   dup length 0 eq {
                     pop pdfpagecount
                   }{
                     0 exch {48 sub exch 10 mul add} forall
                   } ifelse
                   1 exch %% start 1 end
                   %% Make sure the end of the range is inside the number of available pages
                   dup pdfpagecount gt {pop pdfpagecount} if
                   {PDFPageList exch 1 put} for
                 } {
                   %% start of range invalid, drop this range.
                   pop pop
                 }ifelse
               }{
                 %% no minus signs, must be a simple page number
                 0 exch {48 sub exch 10 mul add} forall
                 %% ensure its in the valid range of pages
                 dup pdfpagecount le {
                    PDFPageList exch 1 put
                 } {
                   pop
                 } ifelse
               } ifelse
               exit %% done all the sections.
             } ifelse
           } loop
           QUIET not {
             (Processing pages ) print PageList =only
             (.) = flush
           } if
         } ifelse
       } ifelse
       1 pdfpagecount
     }{
       /FirstPage where {
         <</DisablePageHandler //true>> setpagedevice
         pop FirstPage dup pdfpagecount gt {
           (\nRequested FirstPage is greater than the number of pages in the file: ) print
            pdfpagecount = flush
         } if
       } {
          1
       } ifelse
       /LastPage where {<</DisablePageHandler //true>> setpagedevice pop LastPage pdfpagecount .min } { pdfpagecount } ifelse
       1 index 1 index gt {
         (   No pages will be processed \(FirstPage > LastPage\).) = flush
       } {
         QUIET not {
           (Processing pages ) print 1 index =only ( through ) print dup =only
           (.) = flush
         } if
       } ifelse
     } ifelse
   }ifelse
} bind executeonly def

/dopdfpages {   % firstpage# lastpage# dopdfpages -
  << /PDFScanRules //true >> setuserparams	% set scanning rules for PDF vs. PS
  << /RenderTTNotdef systemdict
     /RENDERTTNOTDEF get >> setuserparams	% Should we render TT /.notdef
  1 exch
    {
      %% If we have a array of pages to render, use it.
      /PDFPageList where {
        pop dup PDFPageList exch get 1 eq
      }
      {//true} ifelse

      {
        dup /Page# exch store
        QUIET not { (Page ) print dup //== exec flush } if
        pdfgetpage pdfshowpage
      }{
        pop
      }ifelse
    } for
  % Indicate that the number of spot colors is unknown in case the next page
  % imaged is a PS file.
  currentpagedevice /PageSpotColors known { << /PageSpotColors -1 >> setpagedevice } if
  << /PDFScanRules //null >> setuserparams	% restore scanning rules for PS
} bind executeonly def

/runpdfend {
   RepairedAnError
   {
     printrepairederror
   } {
     Repaired { printrepaired } if
   } ifelse
   currentdict pdfclose
   end			% temporary dict
   end			% pdfdict
   end			% GS_PDF_ProcSet
   PDFTopSave restore
   end			% userdict
   2 vmreclaim		% couldn't hurt
} bind executeonly def

% Copy stream to an external temporary file and
% return the file name as PS name.
/copy_embedded_file {
  //true resolvestream      % strm
  dup 1023 string .peekstring pop % "1024 string" exceeds current %stdin buffer
  dup length 400 ge {             % Valid PDF file cannot be smaller than 400 bytes.
     (%PDF-) search {
       pop pop pop //true
     } {
       pop //false
     } ifelse
   } {
     pop //false
   } ifelse {
    //null (w) /.tempfile   % strm (name) null (w) /.tempfile
    .systemvar exec         % strm (name) file
    3 -1 roll               % (name) file strm
    32768 string            % (name) file strm (buf)
    { 3 copy readstring     % (name) file strm (buf) file (data) bool
      3 1 roll              % (name) file strm (buf) bool file (data)
      writestring           % (name) file strm (buf) bool
      not { exit } if
    } loop
    pop closefile           % (name) file
    closefile               % (name)
    cvn                     % /name
  } {
    closefile
  } ifelse
} bind executeonly def

% Recursively enumerate /Names entries
% <node> pdf_collection_names /temp_file_name ...
/pdf_collection_names {
  dup /Names knownoget {
    exch pop
    { oforce
      dup type /dicttype eq {
        /EF knownoget {
          /F knownoget {
            copy_embedded_file
          } if
        } if
      } {
        pop
      } ifelse
    } forall
  } {
    /Kids knownoget {
      { oforce
        dup //null ne {
          pdf_collection_names
        } {
          pop
        } ifelse
      } forall
    } if
  } ifelse
} bind executeonly def

% Copy selected subfiles to temporary files and return the file names
% as a PostScript names to protect them from restore.
% Currently, all PDF files in the Portfolio are extracted and returned.
%
% - pdf_collection_files [ /temp_file_name ... /temp_file_name
/pdf_collection_files {
  mark
  Trailer /Root knownoget {
    dup /Collection oknown {
      /Names knownoget {
        /EmbeddedFiles knownoget {
          pdf_collection_names
        } if
      } if
    } {
      pop
    } ifelse
  } if
} bind executeonly def

/runpdf {		% <file> runpdf -
  %% Get the PDF filename (it *must* be a file even if it came from stdin it gets
  %% copied to a temporary file) and store it in pdfdict. We will use this for
  %% hashing fonts to detect if fonts with the same name are from different files.
  %%
  dup currentglobal exch //true setglobal .getfilename exch setglobal /InputPDFFileName exch //pdfdict 3 1 roll .forceput

  //runpdfbegin exec
  //pdf_collection_files exec
  dup mark eq {
    pop
    process_trailer_attrs
    //runpdfpagerange exec
    //dopdfpages exec
    //runpdfend exec
  } {
    //runpdfend exec
    ]
    (1         ) 10 string copy exch
    {
        dup type /filetype eq {
          //runpdfbegin exec
          dup /PortfolioPage exch def
          process_trailer_attrs
          //runpdfpagerange exec
          //dopdfpages exec
          //runpdfend exec
          closefile
        } {
          .namestring dup (r) file
          //runpdfbegin exec
          /PortfolioPage 2 index def
          process_trailer_attrs
          //runpdfpagerange exec
          //dopdfpages exec
          //runpdfend exec
          deletefile
        } ifelse
    } forall
    pop
  } ifelse
} bind executeonly odef

currentdict /pdf_collection_files .undef

end			% systemdict
% Redefine the procedure that the C code uses for running piped input.
% It is OK to use { (%stdin) run } here, because a startjob cannot occur.
/.runstdin {
  { (%stdin) run } execute0
} bind executeonly def

end			% userdict
pdfdict begin

% ======================== File parsing ======================== %

% Read the cross-reference and trailer sections.

% I believe the definitions here are only used when parsing the trailer
% dictionary and cross-reference table. So, following on from bug 697351
% we will validate the operands to /R here, because the trailer and xref
% are comparatively small. Note that the bug does not expose a problem
% here, but we probably ought to validate the operands. Of course, if
% they are invalid, the PDF file is probably unreadable anyway.

/traileropdict mark
  (<<) cvn { /dictlevelcount dictlevelcount 1 add store mark } bind executeonly
  (>>) cvn { { .dicttomark } stopped {
              (   **** Warning: File has unbalanced >> in trailer.\n) pdfformatwarning
             } if
             /dictlevelcount dictlevelcount 1 sub def
             dictlevelcount 0 eq { exit } if
           } bind executeonly
  ([) cvn { mark } bind executeonly		% ditto
  (]) cvn dup load
%  /true true		% see .pdfexectoken in pdf_base.ps
%  /false false		% ibid.
%  /null null		% ibid.
  /R {
  1 index type /integertype eq 1 index type /integertype eq and {
    /resolveR cvx 3 packedarray cvx
  } {
    (   **** Error: indirect object reference \(R\) encountered with invalid arguments.) pdfformaterror
    (               Output may be incorrect.\n) pdfformaterror
  } ifelse
  } bind executeonly	% see Objects below
.dicttomark readonly def

% After reading entry count: skip whitespace, exit on a digit
% (presumably the object offset, otherwise throw /syntaxerror
/xref-char-dict <<
   0  {}        % \000
   9  1 index   % \t
  10  1 index   % \r
  12  1 index   % \f
  13  1 index   % \n
  32  1 index   % ' '

  48  { exit } bind % '0'
  49  1 index   % '1'
  50  1 index   % '2'
  51  1 index   % '3'
  52  1 index   % '4'
  53  1 index   % '5'
  54  1 index   % '6'
  55  1 index   % '7'
  56  1 index   % '8'
  57  1 index   % '9'
 116  {         % 't'railer
        PDFfile 7 string .peekstring not { () } if
        dup /trailer eq {
          % Empty xref section
          pop exit
        } {
          (   **** Warning: Invalid string \() exch concatstrings
          (\) follows xref section header.\n) concatstrings
          pdfformatwarning
          /setxrefentry cvx /syntaxerror signalerror
        } ifelse
      } bind
>> readonly def

 %  Read original version (pre PDF 1.5) of the xref table.
 %  Note:  The position is the location of 'xref'.  The current PDFfile
 %  position is just after the 'XREF'.
/readorigxref		% <pos> readorigxref <trailerdict>
 {
   pop				% We do not need the position.

   % First we search this (and any Previous) trailers, looking for
   % the /Size of the xref. We use ths to initialise our storage
   % of xref and similar objects. This avoids us havign to continually
   % resize these objescts which is very wasteful, and leads to us
   % spending much time in memory amanagement.
   % Bug #696454
   PDFfile fileposition
   /dictlevelcount 0 def
   /TrailerSizeError //false def
   /TrailerSize 0 def

   {
     % Throw away the 'xref' data up to the trailer dictionary
     PDFfile 0 (trailer) /SubFileDecode filter flushfile
     % Now read the trailer dictionary
     PDFfile traileropdict .pdfrun

     dup /Size known {
       % If we have a /Size then use it and exit this loop
       /Size get /TrailerSize exch def
       exit
     }{
       dup /Prev known {
         % We don't have a Size, but we have a Previous, set up to read it.
         /Prev get PDFfile exch setfileposition
       }{
         % No size and no Prev with a Size. Fall back to resizing the xref as we go.
         pop
         (*** Warning: No trailer dictionary with a Size detected, xref processing will be dynamic and slower) pdfformatwarning
         /TrailerDict 0 def
         exit
       } ifelse
     }ifelse
   }loop

   % Initialise the objects with the detected Size.
   TrailerSize growPDFobjects
   PDFfile exch setfileposition
   0				% Initialize xref table error counter
   //false            % Have we seen at least one section entry in this xref ? Bug #694342
   { PDFfile token pop		% first object # or trailer
     dup /trailer eq {
         %% check to see if we have seen at least an empty section for this xref
        pop {exit}
        {
            %% we have not seen any section entries in an xref, not even an empty section (xref 0 0)
            %% Bug 694342, treat this as an error and rebuild the xref.
            /setxrefentry cvx /syntaxerror signalerror
        } ifelse
     }
     {
     %% remove the boolean telling us if we have a section or not, leaving the first object number
     exch pop
     } ifelse
     PDFfile token pop		% entry count

     % remaining must be whitespace only (otherwise this xref Size was invalid.
     { PDFfile (0) .peekstring not { pop exit } if
       0 get //xref-char-dict exch .knownget {
         exec
       } {
         (   **** Warning: xref subsection header has extra characters.\n)
         pdfformatwarning
         /setxrefentry cvx /syntaxerror signalerror
       } ifelse
       PDFfile read { pop } { exit } ifelse
     } loop
                % This section might be adding new objects:
                % ensure that Objects and Generations are big enough.
                % stack: <err count> <first obj> <entry count>
     2 copy add
     TrailerSize gt {
       TrailerSizeError not {
         /TrailerSizeError //true def
         PDFSTOPONERROR not {
           (**** Warning: Discovered more entries in xref than declared in trailer /Size\n) pdfformatwarning
         } {
           /readorigxref cvx /rangecheckerror signalerror
         } ifelse
       } if
       % We now know that the /Size was wrong. We could read the whole table
       % resizing on every section, but if there are a lot of sections we
       % end up spending lots of time in memory management (Bug #696454) so
       % instead add 64k to the first object number in the section. This will
       % waste some memory, but is faster in ths case.
       1 index 65534 add dup /TrailerSize exch def
       growPDFobjects
     } if
     {				% stack: <err count> <obj num>
                % Read xref line
       PDFfile 20 string readstring pop  % always read 20 chars.
       token pop		% object position
       exch token pop		% generation #
       exch token pop		% n or f
       exch			% stack: <err count> <obj#> <loc> <gen#> <tag> <remainder of line>
       % check to make sure trailing garbage is just white space
       //false 1 index { 32 gt or } forall {
         6 -1 roll 1 add 6 1 roll  % bump error count on garbage
         dup (\n) search {
           exch pop exch pop
         } {
           (\r) search {
             exch pop exch pop
           } if
         } ifelse
         length
         PDFfile fileposition exch sub PDFfile exch setfileposition
       } if
       pop			% Stack: <err count> <obj#> <loc> <gen#> <tag>
       dup /n eq {		% xref line tag is /n
         pop			% pop dup of line tag
         1 index 0 eq {
           (   **** Warning: considering '0000000000 XXXXX n' as a free entry.\n)
           pdfformatwarning
         } {
           0 3 1 roll		% Set ObjectStream object number = 0
           //false setxrefentry	% Save xref entry, don't change existing entries
           3 -1 roll pop	% Remove ObjectStream object onumber
         } ifelse
       }
       {			% xref line tag was not /n
         /f ne			% verify that the tag was /f
         { /setxrefentry cvx /syntaxerror signalerror
         } if
       } ifelse
       pop pop			% pop <obj location> and <gen num>
       % stack: <err count> <obj num>
       1 add			% increment object number
     } repeat
     pop			% pop <obj #>
     //true           % We have seen at least one entry in an xref section Bug #694342
   } loop
   0 ne {
     (   **** Warning:  length of some xref entries is not equal to 20 bytes.\n)
     pdfformatwarning
   } if
   PDFfile traileropdict .pdfrun
 } bind executeonly def

currentdict /xref-char-dict undef

 % This dicitonary is used to read the xref dictionary.  It should work for
 % reading any dictionary.  dictlevelcount must contain 0.
/xrefopdict mark
  (<<) cvn { /dictlevelcount dictlevelcount 1 add def mark } bind executeonly
  (>>) cvn { .dicttomark /dictlevelcount dictlevelcount 1 sub def
             dictlevelcount 0 eq { exit} if } bind executeonly
  ([) cvn { mark } bind	executeonly	% ditto
  (]) cvn dup load
%  /true true		% see .pdfexectoken in pdf_base.ps
%  /false false		% ibid.
%  /null null		% ibid.
  /R { /resolveR cvx 3 packedarray cvx } bind executeonly	% see Objects below
.dicttomark readonly def

% Get a variable length positive integer value from a stream.  A value
% of zero is returned if the count is zero.
/getintn {	% <stream> <count> getintn int
  0 exch { 256 mul 1 index read pop add } repeat
  exch pop			% Discard stream
} bind executeonly def

% This array contains handlers for processing the different types of
% entries in the XRef stream.
% Stack: <Xrefdict> <xref stream> <Index array> <pair loc> <obj num>
% 	 <field 2> <field 3>
% The handlers leave the stack unchanged.
/xref15entryhandlers [
  {	% XRef entry type 0 - free or f type xref entry
%    (free ) print
%    (obj num: ) print 2 index pdfstring cvs print ( ) print
%    (loc: ) print 1 index pdfstring cvs print ( ) print
%    (gen: ) print dup === flush
  } bind executeonly		% Do nothing for free xref entries
        % XRef entry type 1 - normal or n type xref entry
  {	% field 2 = obj loc, field 3 = gen num
%    (normal ) print
%    (obj num: ) print 2 index pdfstring cvs print ( ) print
%    (loc: ) print 1 index pdfstring cvs print ( ) print
%    (gen: ) print dup === flush
    0 3 1 roll			% set stream number = 0
    //false setxrefentry
    3 -1 roll pop		% remove stream number
  } bind executeonly
        % XRef entry type 2 - compressed object type xref entry
  {	% field 2 = object stream num, field 3 = index into object stream
%    (Compressed objects: ) print
%    (obj num: ) print 2 index pdfstring cvs print ( ) print
%    (field 2: ) print 1 index pdfstring cvs print ( ) print
%    (field 3: ) print dup === flush
    0 //false setxrefentry pop	% set generation number = 0
  } bind executeonly
] def

 %  Read the PDF 1.5 version of the xref table.
 %  Note:  The position is the location of the start of the dictionary object
 %  In PDF 1.5, the XRef dictionary also serves as the trailer dictionary
/readpdf15xref		% <pos> readpdf15xref <trailerdict>
 {
   /Classic-xref //false store
   PDFfile exch setfileposition		% move to start of object
        % Get object number, revision, and 'obj' and discard
   //false PDFfile token {
     type /integertype eq {
       PDFfile token {
         type /integertype eq {
           PDFfile token {
             /obj eq or
           } if
         } if
       } if
     } if
   } if
   not {
     /readpdf15xref cvx /syntaxerror signalerror
   } if
        % Get the XRef dicitionary
   /dictlevelcount 0 def PDFfile xrefopdict .pdfrun
        % Verify that we have an XRef dictionary
   dup /Type get /XRef ne {
     /readpdf15xref cvx /syntaxerror signalerror
   } if
        % Ensure that we we have room in the objects array, etc.
   dup /Size get 1 index /Index .knownget {
     %% if we have a /Index, remember to add the starting index on to the size
     dup 0 get 3 -1 roll add exch
     %% Get the staring index and number of entries from the Index array
     %% add them, and see if the result is larger than the starting index plus
     %% Size entry (yes they are *supposed* to be consistent.....)
     %% Bug #696365
     dup 0 get exch 1 get add 2 copy gt {
       pop
     }{
       exch pop
     } ifelse
   } if
   growPDFobjects
        % Create a stream for the XRef data
   PDFfile token pop pop		% Skip over 'stream'
   dup stream //false resolvestream
        % Stack: <XRefdict> <xref stream>
        % The Index array defines the ranges of object numbers in the
        % XRef stream.  Each value pair is consists of starting object
        % number and the count of consecutive objects.
        % Get the Index array, if present
   1 index /Index .knownget not {	% If no Index array ...
     [ 0 3 index /Size get ]		% Default = [ 0 Size ]
   } if
        % Loop through the Index array
   0 2 2 index length 1 sub {
        % Get start and end of object range
     2 copy get				% Start of the range
     dup 3 index 3 index 1 add get 	% Number of entries in range
        % Loop through the range of object numbers
     add 1 sub 1 exch {			% Form end of range, set increment = 1
        % Stack: <Xrefdict> <xref stream> <Index array> <pair loc> <obj num>
        % Get xref parameters.  Note:  The number of bytes for each parameter
        % is defined by the entries in the W array.
       4 index /W get aload pop		% Get W array values
        % The first field indicates type of entry.  Get first field value.
        % If the num. of bytes for field 1 is 0 then default field value is 1
       3 -1 roll dup 0 eq { pop 1 } { 6 index exch getintn } ifelse
        % Get the handler for the xref entry type.  We will execute the
        % handler after we get the other two field values.
       xref15entryhandlers exch get
       3 -1 roll 6 index exch getintn	% Get second field
       3 -1 roll 6 index exch getintn	% Get third field
       3 -1 roll exec			% Execute Xref entry handler
       pop pop pop			% Remove field values and obj num
     } for				% Loop through Xref entries
     pop				% Remove Index array pair loc
   } for				% Loop through Index array entries
   pop pop				% Remove Index array and xref stream
 } bind executeonly def

% Read the cross-reference table.
% <pos> is the position either from the startxref statement or the /Prev
% entry in the prior trailer dictionary.
/readxref		% <pos> readxref <trailerdict>
 {
   PDFoffset add PDFfile exch
   % Check that the given location is within the file.
   dup PDFfilelen gt {
       (   **** Warning:  Specified xref location is beyond end of file.\n)
       pdfformatwarning
       /readxref cvx /invalidaccess signalerror
   } if
   setfileposition
                % In some PDF files, this position actually points to
                % white space before the xref line.  Skip over this here.
   {
     PDFfile fileposition PDFfile read pop 32 gt { exit } if pop
   } loop
   dup		% Make copy of the file position (before last char was read).
   PDFfile exch setfileposition
                % The PDF specification says that the 'xref' must be on a line
                % by itself. The code here formerly used readline and linene to
                % check this. However, Acrobat Reader only requires the line to
                % begin with 'xref', and there are enough applications producing
                % non-compliant PDF files that we have to do this too.
   PDFfile pdfstring 0 4 getinterval readstring pop
   (xref) eq
   {
     readorigxref	% 'xref' -> original xref table
     % if hybrid-reference PDF, also fetch the entries
     % found in the XRef stream pointed by /XRefStm
     dup /XRefStm knownoget {
        %% Bug #695883 the test file has an XRefStm which points beyond the end of the file.
        %% We check that here and simply fall back to thje classic xref if this error occurs.
        dup PDFfilelen lt{
          PDFSTOPONERROR not {
            mark exch {readpdf15xref pop} stopped
            {
              (   **** Error:  This hybrid file's XRefStm does not point to a valid stream.\n                Ignoring error, output may be incorrect.\n) pdfformaterror
            } if
            cleartomark
          } {
            readpdf15xref pop
          } ifelse
        } {
          (   **** Error:  This hybrid file's XRefStm points beyond the end of file.\n                Ignoring error, output may be incorrect.\n) pdfformaterror
          pop
        }ifelse
     } if
   }
   { readpdf15xref }	% otherwise assume PDF 1.5 xref stream
   ifelse
 } bind executeonly def

% Open a PDF file and read the header, trailer, and cross-reference.
/pdfopen {		% <file> pdfopen <dict>
        % Color space substitution in PDF is handled somewhat differently
        % than in PostScript. A given device color space will be substituted
        % if the corresponding "Default..." entry exists in the Page's
        % Resource dictionary (which might be inhereted); there is no
        % UseCIEColor to enable/disable color mapping.
        %
        % This behavior is achieved by always setting UseCIEColor to true
        % in the page device dictionary. If the value of this parameter was
        % originally false (i.e.: the output device does not perform color
        % space substitution by default), the instances DefaultGray,
        % DefaultRGB, and DefaultCMYK of the (local) ColorSpace category
        % are redefined to be DeviceGray, DeviceRGB, and DeviceCMYK,
        % respectively. This is not done if UseCIEColor is true by default,
        % as in that case color substitution is presumably desired even
        % if the file does not request it.
   currentpagedevice /UseCIEColor .knownget dup { pop } if not
    { .currentglobal //false .setglobal
      /DefaultGray { /DeviceGray } cvlit /ColorSpace defineresource pop
      /DefaultRGB { /DeviceRGB } cvlit /ColorSpace defineresource pop
      /DefaultCMYK { /DeviceCMYK } cvlit /ColorSpace defineresource pop
      .setglobal
    }
   if
  pdfopenfile begin
  pdfopencache
  currentdict end
} bind executeonly def

/process_trailer_attrs {  % - process_trailer_attrs -
  writeoutputintents
  .writepdfmarks {
        % Copy bookmarks (outline) to the output.
    Trailer /Root knownoget {
     /Outlines knownoget {
       /NO_PDFMARK_OUTLINES where {pop NO_PDFMARK_OUTLINES not}{//true}ifelse
       {
          dup /First known {
            100 dict exch                               %% dictionary for detecting circular references
            /First get dup type /packedarraytype eq {   %% << >> {} or << >>
              dup 0 get dup                             %% << >> {} object_num object_num
              3 index 3 1 roll                          %% << >> {} << >> object_num object_num
              put
              oforce
            } if

            dup type /dicttype eq {
              {
                dup
                /Next known {
                  dup /Next get                         %% << >> <</Next...>> {} or << >>
                  dup type /packedarraytype eq {
                    dup 0 get                           %% << >> <</Next....>> {} object_num
                    dup 4 index exch known {
                      (\n   **** ERROR:  Circular reference detected in Outlines,\n) pdfformaterror
                      (                terminating Outline processing.\n) pdfformaterror
                      (                Output may be incorrect.\n) pdfformaterror
                                                        %% << >> <</Next....>> {} object_num
                      pop pop dup /Next undef           %% << >> <<.....>>
                      writeoutline exit
                    } if
                                                        %% << >> <</Next....>> {} object_num
                    dup 3 index 3 1 roll put            %% << >> <</Next....>> {}
                    oforce
                  } if
                  exch writeoutline                     %% << >> </Next object>
                  dup type /dicttype eq not
                  {pop exit} if
                } {
                  writeoutline exit
                }ifelse
              } loop
              pop
            }
            {pop pop} ifelse
          }{
            pop
          }ifelse
        } {
          pop
        }ifelse
      } if
    } if
    count /pdfemptycount exch def
    Trailer /Info {knownoget} stopped {
      (   **** Error:  Unable to read Info dictionary from Trailer, Info will not be preserved.\n) pdfformaterror
      count pdfemptycount sub {pop} repeat
      /emitProducer where {/emitProducer //false put} if
    }
    {
      {
        %
        % Bug #700820, if the Info dictionary isn't a dictionary, then don't try to use it....
        %
        dup type /dicttype eq {
          mark exch
          { /Author /Creator /Title /Subject /Keywords
            % /Producer is Ghostscript; /CreationDate is now; /ModDate is also now.
          } {
            2 copy knownoget { 3 -1 roll } { pop } ifelse
          } forall
          pop
          dup mark ne { {/DOCINFO pdfmark} stopped {cleartomark} if } { pop } ifelse
        }{
          pop
          (   **** Error:  The Info dictionary is not a dictionary, Info will not be preserved.\n) pdfformaterror
          count pdfemptycount sub {pop} repeat
          /emitProducer where {/emitProducer //false put} if
        } ifelse
      } if
    } ifelse
  } if
  % Initialize OC groups
  Trailer /Root knownoget {
    /OCProperties knownoget {
    % By default, OCGs are 'on'; mark only 'off' OCGs.
    % If, contrary to the spec, BaseState is OFF, mark all OCGs
    % and unmark ON ones. Bug 691491.
    dup /OCGs knownoget not { {} } if exch
    /D knownoget {
      dup /BaseState knownoget { /OFF eq } { //false } ifelse {
        (   **** Warning:  Default viewing OC config dictionary has /BaseState /OFF\n)
        pdfformatwarning
        1 index {
          oforce dup type /dicttype eq {
            /OFF 0 put
          } {
            pop
          } ifelse
        } forall
        /ON knownoget {
          { oforce dup type /dicttype eq {
              /OFF undef
            } {
              pop
            } ifelse
          } forall
        } if
      } {
        /OFF knownoget {
          { oforce dup type /dicttype eq {
              /OFF 0 put
            } {
              pop
            } ifelse
          } forall
        } if
      } ifelse
    } if
    pop
  } if
  } if

  % Enumerate all AcroForm fields and link all separate widgets
  % to the parent field.
  Trailer /Root knownoget {
    /AcroForm knownoget {
    %% If we don't have a NeedAppearances entry, treat as if true.
    %% We know Acrobat always regenerates all annotait
    dup /NeedAppearances knownoget not { //true } if {
      /NeedAppearances //true def
      dup
      /Fields knownoget {
        { oforce
          %% Make sure the entry from the Fields array is a dictionary
          %% Bug #692447.pdf has an array of nulls.
          dup type /dicttype eq {
            link_widget_annots
          }if
          pop
        } forall
      } if
      pop
    } {
      pop
    } ifelse
  } if
  } if

  % Use OutputIntent ICC profile
  systemdict /UsePDFX3Profile .knownget {
    dup //false eq {
      pop
    } {
      dup //true eq { pop 0 } if
      dup type /integertype eq {
        Trailer /Root oget /OutputIntents knownoget {
          dup length 2 index le  % i [] bool
          2 index 0 lt or {
            pop pop
            (Source file has no OutputIntent with this number.\n)
          } {
            exch oget dup type /dicttype ne { pop << >> } if
            /DestOutputProfile knownoget {
              [ /ICCBased 3 -1 roll ] ICCBased-resolve
              1 get .set_outputintent
              ()
            } {
              (This OutputputIntents dictionary has no profile.\n)
            } ifelse
          } ifelse
        } {
          pop (File has no /OutputIntents attribute\n)
        } ifelse
      } {
        pop (UsePDFX3Profile must be a boolean or an integer.\n)
      } ifelse
      dup () eq {
        pop
      } {
        (   **** ) stderrprint stderrprint
      } ifelse
    } ifelse
  } {
    % If the user told us to use a named OutputIntent
    systemdict /UseOutputIntent .knownget {
      cvn
      Trailer /Root oget /OutputIntents knownoget {
        {
          dup /OutputConditionIdentifier get cvn
          dup /Custom eq {
            pop
            dup /Info get cvn
          }if
          2 index eq {
            %% Found the required OutputIntent
            /DestOutputProfile knownoget {
              [ /ICCBased 3 -1 roll ] ICCBased-resolve
              1 get .set_outputintent
              ()
            } if
            pop
            exit
          }{
            pop
          } ifelse
        }
        forall
        pop
      }{
        pop
      }ifelse
    } if
  }ifelse
  Trailer /Root knownoget { /PageLabels knownoget {
    %% Currenlty only the pdfwrite device can handle PageLabels
    %% because we deal with these using putparams, not pdfmarks
    %% This is because the pdfmark syntax can't handle all the
    %% possible page label formats in a PDF file!
    /WantsPageLabels /GetDeviceParam .special_op {
      pop pop
      .pdfpagelabels
    } {
      pop
    } ifelse
  } if
  } if
} bind executeonly def

% Verify that each entry in the xref table is pointing at an object with
% the correct object number and generation number.
/verify_xref				% - verify_xref -
{ PDFfilelen
  1 1 Objects length 1 sub	% stack: filesize 1 1 <number of objects - 1>
  {	% Check if the object is free (i.e. not used).  The values in
        % Generations is the generation number plus 1.  If the value in
        % Generations is zero then the object is free.
        % Stack:  <filesize> <obj num>
    Generations 1 index get 		% Get the genration number
    0 ne {				% Skip if object number is free
      ObjectStream 1 index get 	% Check if object is in objectstream
      0 eq {	% We only check objects not in an objectstream
        {	% Use stop context since we may get an error if object is invalid
          dup Objects exch get 	% Get the object location
          PDFoffset add dup 3 index ge	% Compare object location to file size
          { pop //true }			% Rebuild if location not in file
          { PDFfile exch setfileposition % Go to the object location
            //true			% Stack:  <filesize> <obj num> <true>
            PDFfile token pop		% Read object number from file
            2 index eq {		% Verify object number
              PDFfile token pop		% Read generation number from file
              Generations 3 index	% Get specified generaton number
              get 1 sub		% Gen numbs are stored with 1 added.
              eq { 			% Verify generation number
                PDFfile token pop
                /obj eq { % Verify 'obj' text
                  pop //false		% We have valid object, do not rebuild
                } if
              } if
            } if
          } ifelse
        } //.internalstopped exec
        { //true } if			% If we stop then we need to rebuild
        % Stack:  <filesize> <obj num> <need rebuild flag>
        {
          (   **** Warning:  File has an invalid xref entry:  )
          pdfformatwarning
          pdfstring cvs pdfformatwarning
          (.  Rebuilding xref table.\n) pdfformatwarning
          search_objects
          exit
        } if				% If the entry is invalid
      } {
              % The object is in an object stream.  We currently do not rebuild
              % objects in an object stream.  So If we find one, then abort the
              % verification of the xref table entries.
        pop exit			% Pop object number and then exit loop
      } ifelse				% If not in an object stream
    } if				% If object entry is not free
    pop					% Remove object number
  } for
  pop					% Remove the size of the file
} bind odef

/pdfopencache {		% - pdfopencache -
        % Create and initialize some caches.
  /PageCount pdfpagecount def
  /PageNumbers PageCount 65534 .min dict def
  /PageIndex PageCount 65534 .min array def
} bind executeonly def

/pdfopenfile {		% <file> pdfopenfile <dict>
   //pdfdict readonly pop		% can't do it any earlier than this
   32 dict begin
   /LocalResources 0 dict def
   /DefaultQstate //null def	% establish binding
   /Printed where { pop } {
                % Guess whether the output device is a printer.
     /Printed currentpagedevice /OutputFile known def
   } ifelse
   currentpagedevice /OutputFile known {
     currentpagedevice /OutputFile get (%d) search {
       pop pop pop
       /NO_PDFMARK_OUTLINES //true def
       /NO_PDFMARK_DESTS //true def
     } {
       pop
     }ifelse
   } if
   /PSLevel1 where { pop } { /PSLevel1 //false def } ifelse
   % NB: PDFfile is used outside of the PDF code to determine that a
   % PDF job is being processed; to not change or hide this key.
   cvlit /PDFfile exch def
   /PDFsource PDFfile def
   /Repaired //false def
   /emitProducer //true def
   /RepairedAnError //false def
   /StreamRunAborted //false def
   /NeedAppearances //false def
   /ICCProfileNError //false def
   currentglobal //true .setglobal globaldict begin
   /UndefProcList 0 dict def
   end .setglobal
   PDFfile dup 0 setfileposition
   0 () /SubFileDecode filter   % to avoid file closure
   pdfstring readstring pop
   (%PDF-) search not {/pdfopen cvx /syntaxerror signalerror} if
   length /PDFoffset exch def pop
   % some badly formed PDF's (Visioneer) have something other than EOL
   % after the version number. If we get an error, shorten the string
   % and try again.
   //false exch		% error encountered
   { { cvr } stopped
     { exch pop //true exch 0 1 index length 1 sub dup 0 eq
       { pop 0 exit } if	% exit if string now empty
       getinterval		% trim character from right end and retry
     }
     { exch {
         (   **** Warning: PDF version number not followed by EOL.\n)
         pdfformatwarning
       }
       if exit
     }
     ifelse
   } loop

   /Classic-xref //true def
   /PDFversion exch def
        % Read the last cross-reference table.
   count /pdfemptycount exch def
   /Trailer << >> def		% Initialize to an emptry dict.
   {initPDFobjects findxref readxref}
   PDFSTOPONERROR not {
     //.internalstopped exec {
       recover_xref_data		% Read failed.  Attempt to recover xref data.
       search_trailer		% Search for the primary trailer
       //false                % search_trailer sets up /Trailer, so don't run the code to do that...
     } {
       //true
     } ifelse
   } {
     exec //true
   } ifelse

   {
     /Trailer exch def		% Save trailer dict after first xref table
        % Read any previous cross-reference tables.  When we are done,
        % verify that the entries in the xref tables are valid if NoVerifyXref
        % is not defined.
     /PrevArray [] def                        % Empty array, we use this to detect circular /Prev entries in xref (see below)
                                              % For some reqason, leaving this on the stack messes up seom files.
     Trailer
     { /Prev knownoget not {	% If no previous xref table then ...
         Classic-xref {
           /NoVerifyXref where { pop } { verify_xref } ifelse
         } if
         exit
       } if

       %% This code is used to detect circular references in xref tables. Every time
       %% we detect a /Prev in the xref, we check the given offset of the /Prev xref
       %% against a list of all previously encountered /Prev offsets. If we find that
       %% we have previously seen this one, we raise an error, stop processing the xref
       %% but carry on with the PDF file (unless PDFSTOPONERROR is true).
       //false exch PrevArray           %% Used to determine if the looop found a circular ref
       {                                %% //false offset 'array entry'
         1 index eq {
           exch pop //true exch         %% We've seen this offset before, pop the false and replace with true
           exit                         %% //true offset
         } if
       } forall

       exch                             %% [...] offset bool
       {
         (\n   **** Error: Circular /Prev entry while reading xref.\n               Aborting xref read, output may be incorrect.\n)
         pdfformaterror
         PDFSTOPONERROR {
           /readxref /syntaxerror cvx signalerror
         } if
         pop exit                       %% [...] and then exit this loop
       } if

       PrevArray dup                         %% offset [...] [...]
       length 1 add array               %% offset [...] [    ]
       dup 3 1 roll                     %% offset [    ] [...] [    ]
       copy pop                         %% offset [... ]
       dup dup length 1 sub             %% offset [... ] [... ] index
       3 index                          %% offset [... ] [... ] index offset
       put /PrevArray exch def

       { readxref }
       PDFSTOPONERROR not {
         //.internalstopped exec {
           recover_xref_data	% Read failed.  Attempt to recover xref data.
           /PrevArray where {/PrevArray undef} if     %% remove the array we were using to detect circular references
           exit			% Exit loop since recover gets all obj data.
         } if  			% If readxref stopped
       } {
         exec
       } ifelse
       % The PDF spec. says that each trailer dict should contain the required
       % entries.  However we have seen a PDF file that only has a Prev entry in
       % the initial trailer dict.  Acrobat complains but it accepts these files.
       % To work with these files, we are copying any entries which we find in
       % a previous trailer dict which are not present in the initial dict.
       dup {
         Trailer 2 index known {
           pop pop              % discard if key already present
         } {
           Trailer 3 1 roll put % add key if not present
         } ifelse
       } forall
     } loop			% Loop to previous trailer
     /PrevArray where {/PrevArray undef} if     %% remove the array we were using to detect circular references
   } if

   /NumObjects Objects length def  % To check that obj# < NumObjects

   % Scan numbers in the range 2147483648..4294967295 in Encrypt dictionary
   % as unsigned integers for compatibility with Acrobat Reader. Bug 689010.
   << /PDFScanUnsigned //true >> setuserparams
   { Trailer /Encrypt knownoget {
       pop
       pdf_process_Encrypt	% signal error
     } if
   } stopped
   << /PDFScanUnsigned //false >> setuserparams
   { stop } if

   % Check for recursion in the page tree. Bug 689954, MOAB-06-01-2007
   verify_page_tree

   currentdict end
 } bind executeonly def

%% Executing token on a file will close the file if we reach EOF while
%% processing. When repairing broken files (or searching for startxref
%% and the xref offset) we do *NOT* want this to happen, because that
%% will close PDFfile and we don't have the filename to reopen it.
/token_no_close {   %% -file- token_no_close <any> true | false
  dup type /filetype eq {
    <<
    /EODCount 2 index bytesavailable    %% fix data length at underlying bytes
    /EODString ()                       %% make sure filter passes that many bytes, no EOD
    /CloseSource //false                  %% Be sure, tell the filter not to close the source file
    >>
    /SubFileDecode filter dup           %% -filter- -filter-
    token {                             %% -filter- <any> true | false
                                        %%  token returned a value
      exch                              %%  <any> filter
      closefile                         %%  <any>
      //true                              %%  <any> true
    }{
                                        %% token didn't find a value
      closefile                         %%  -
      //false                             %%  false
    } ifelse
  } {
      token
  } ifelse
} bind executeonly def

% Look for the last (startxref) from the current position
% of the file. Return the position after (startxref) if found or -1 .
/find-startxref {  % <file> find_eof <file> <position>
  -1
  { 1 index dup  0 (startxref) /SubFileDecode filter flushfile
    bytesavailable 9 lt { exit } if
    pop dup fileposition
  } loop
} bind executeonly def

% Search for the last 'startxfer' and read a following token, which
% must be a number. Don't pay any attention to %%EOF because it's
% often mangled.
% There seems to be no limit on the amount of garbage that can be
% appended to the PDF file. Current record (60K) belongs to
% PDF-Out (v 2.0 - 35). We start the search from the last 1024
% bytes and continue from the beginning of the file.
/findxref {		% - findxref <xrefpos>
  PDFfile dup dup dup 0 setfileposition bytesavailable
  dup /PDFfilelen exch def
        % Find the last %%EOF string (within 1024 bytes)
  1024 sub PDFoffset .max
  setfileposition find-startxref   % file pos|-1  % search the last 1024 bytes
  dup 0 le {
    pop
    dup PDFoffset setfileposition find-startxref  % search from the beginnibg
    dup 0 le {
       (   **** Error: Cannot find a 'startxref' anywhere in the file.\n)
       pdfformaterror
       (               Output may be incorrect.\n) pdfformaterror
       /findxref cvx /syntaxerror signalerror
    } if
  } if
  2 copy setfileposition
  pop token_no_close not { //null } if
  dup type /integertype ne {
    (   **** Error: invalid token after startxref.\n)  pdfformaterror
    (               Output may be incorrect.\n) pdfformaterror
        /findxref cvx /syntaxerror signalerror
  } if
} bind executeonly def

/stderrfile (%stderr) (w) file def
/stdoutfile (%stdout) (w) file def

/stderrprint {                % <string> stderrprint -
  //stderrfile dup 3 -1 roll writestring flushfile
} bind executeonly def

/stdoutprint {                % <string> stderrprint -
  //stdoutfile dup 3 -1 roll writestring flushfile
} bind executeonly def

/pdfformaterror {	% <string> pdfformaterror -
  stdoutprint
  /Repaired //true store
  /RepairedAnError //true store
} bind executeonly def

/pdfformatwarning {	% <string> pdfformaterror -
  QUIET not {stdoutprint}{pop}ifelse
  /Repaired //true store
  PDFSTOPONWARNING {/warning cvx /undefined signalerror} if
} bind executeonly def

/knownoget_safe
{ 2 copy knownoget { 3 1 roll pop pop //true } { pop pop //false } ifelse
} odef

/printProducer {
  Trailer /Info { knownoget_safe } stopped { pop pop //false } if

  {
    /emitProducer where {/emitProducer get}{//true} ifelse
    {
      /Producer knownoget not { //null } if
    }{
      pop //null
    } ifelse
  } {
    //null
  } ifelse

  dup //null eq {
    pop
  } {
    (   **** The file was produced by: \n   **** >>>> ) stderrprint
        % Handle a Unicode Producer.
    (\376\377) anchorsearch {
      pop dup length 2 idiv string 0 1 2 index length 1 sub {
                % Stack: origstr newstr i
        1 index exch 3 index 1 index 2 mul 1 add get put
      } for exch pop
    } if
    stderrprint
    ( <<<<\n) stderrprint
  } ifelse
} bind executeonly def
% The UndefProcList collects noisy warnings.
% This gets rid of many multiple warnings from pdf_font.ps
/printCollectedWarnings {
   UndefProcList length 0 gt {
      (\n   **** Embedded font uses undefined procedure\(s\):  ) stderrprint
      UndefProcList {
         exch .namestring stderrprint ( ) stderrprint
         =string cvs stderrprint ( times, ) stderrprint
      } forall
      (\n) stderrprint
   } if
} bind executeonly def

/printrepaired {
  QUIET not
  {
    printCollectedWarnings
    (\n   **** This file had errors that were repaired or ignored.\n)
    stdoutprint
    printProducer
    (   **** Please notify the author of the software that produced this\n)
    stdoutprint
    (   **** file that it does not conform to Adobe's published PDF\n)
    stdoutprint
    (   **** specification.\n\n)
    stdoutprint
  } if
} bind executeonly def

/printrepairederror {
  QUIET not
  {
    printrepaired
    (   **** The rendered output from this file may be incorrect.\n)
    stdoutprint
  } if
} bind executeonly def

% Write the outline structure for a file.  Uses linkdest (below).
% omit links to pages that don't exist.
/writeoutline		% <outlinedict> writeoutline -
 { mark
   0 2 index /First knownoget
    { { exch 1 add exch /Next knownoget not { exit } if } loop }
   if
                % stack: dict mark count
   dup 0 eq
    { pop 1 index }
    { 2 index /Count knownoget { 0 lt { neg } if } if
      /Count exch 3 index
    }
    ifelse
    {
      dup /A knownoget {
        dup /URI known {
          /A mark 3 2 roll    % <<>> /A [ <<action>>
          { oforce } forall
          .dicttomark
          3 2 roll
        }
        {
          dup /S knownoget  {
            %% Because we process GoTo Destinations into absolute references in the PDF file
            %% we need to resolve the /D or /Dest. However, we must *not* do this for
            %% GoToR Destinations because (obviously) those are in a different file and
            %% we cannot resolve them into absolute references. We don't need to anyway
            %% because that file must already have a named destination.
            dup /GoTo eq {
              pop
              dup /D knownoget {
                exch pop exch dup length dict copy dup /Dest 4 -1 roll put
              } if
            }{
              dup /GoToR eq {
                pop /A mark       % <<..action dict..>> /A [
                3 2 roll          % /A [ <<..action dict..>>
                { oforce } forall
                .dicttomark
                3 2 roll
              }{
                dup /Launch eq {
                  pop /A mark       % <<..action dict..>> /A [
                  3 2 roll          % /A [ <<..action dict..>>
                  { oforce } forall
                  .dicttomark
                  3 2 roll
                }{
                    /Named eq {
                    /N knownoget {                % Assume /S /Named
                        namedactions exch .knownget { exec } if
                    } if
                  } if
                } ifelse
              } ifelse
            } ifelse
          } if
        } ifelse
      } if
      linkdest
    } stopped
    {
      cleartomark	% ignore this link
      (   **** Warning: Outline has invalid link that was discarded.\n)
      pdfformatwarning
    } {
      /Title knownoget {
        {/Title exch /OUT pdfmark} stopped {cleartomark} if
      } {
        cleartomark
        (   **** Warning: Outline without /Title attribute was discarded.\n)
        pdfformatwarning
      } ifelse
    }
   ifelse
   /First knownoget
    { { dup writeoutline /Next knownoget not { exit } if } loop }
   if
 } bind executeonly def

% Close a PDF file.
/pdfclose		% <dict> pdfclose -
 { begin
   PDFfile closefile
   end
 } bind executeonly def

% ======================== Page accessing ======================== %

% Get a (possibly inherited) attribute of a page.
/pget			% <pagedict> <key> pget <value> -true-
                        % <pagedict> <key> pget -false-
 {
   2 copy knownoget
    { exch pop exch pop //true }
    {
      %% Check to see if there's a Parent
      1 index
      3 1 roll
      exch /Parent knownoget
      {
        %% If there is a Parent, check to see if this dictionary has a stored object number
        3 -1 roll /.gs.pdfobj# .knownget {
          %% if it does, check the Parent as wwell
          1 index /.gs.pdfobj# .knownget {
            %% Both have object numbers, are they the same (ie its self-referencing)
            eq {
              pop pop
              //false
            }{
              exch pget
            }ifelse
          }{
            pop exch pget
          }ifelse
        } {
          exch pget
        }ifelse
      }
        % finally see if the key is (misplaced) in the Root Catalog dict
      { exch pop dup Trailer /Root oget exch knownoget dup {
          3 -1 roll (   **** Error:  The /) pdfformaterror 50 string cvs pdfformaterror
          ( key is missing from the Page tree.\n) pdfformaterror
          (                Output may be incorrect.\n) pdfformaterror
        }
        { exch pop }
        ifelse
      }
      ifelse
    }
   ifelse
 } bind executeonly def

/parent_obj_get { % /ResourceName pagedict /ObjType LocalResourceDir
  /ParentResources .knownget {
    dup 2 index .knownget {
      % Found ObjType directory
      4 index .knownget {
        0 get 5 1 roll pop pop pop pop
      } {
         parent_obj_get	% not found -- check it's parent.
      } ifelse
    } {
      parent_obj_get	% not found -- check it's parent.
    } ifelse
  } {
    pop pop pop 0
  } ifelse
} bind executeonly def

/obj_get { % /ResourceName pagedict /ObjType obj_get
           %                                 success: /ResourceName objnumber
           %                                    fail: /ResourceName /ResourceName 0
  LocalResources 1 index knownoget {
    dup 4 index .knownget {
      0 get 5 1 roll pop pop pop pop
    } {
      pop pop pop 0
    } ifelse
  } {
    % Not in LocalResources. Try Page Resources.
    1 index /Resources pget {
      1 index knownoget {
        dup 4 index known {
          3 index get
          0 get 4 1 roll pop pop pop
        }{
          % Not in Page Resources, recursively try ParentResources as a last resort
          pop	% page Resources
          LocalResources parent_obj_get
        }ifelse
      }{
        % No Page Resources, recursively try ParentResources as a last resort
          pop	% page Resources
          LocalResources parent_obj_get
      } ifelse
    } {
        % No Page Resources, recursively try ParentResources as a last resort
      pop pop pop 0
    }ifelse
  }ifelse
}bind executeonly def

% Get the value of a resource on a given page.
/rget {			% <resname> <pagedict> <restype> rget <value> -true-
                        % <resname> <pagedict> <restype> rget -false-
  LocalResources 1 index knownoget {
     3 index knownoget
  } {
    //false
  } ifelse {
    exch pop exch pop exch pop //true
  } {
    1 index /Resources pget {
      1 index  knownoget { 3 index knownoget } { //false } ifelse
    } {
      //false
    } ifelse {
      4 1 roll pop pop pop //true
    } {
      countdictstack array dictstack
      //false 5 1 roll
      dup length 1 sub -1 4 {       % false /Name <<>> /Type [<<gstate>>] i
        1 index exch get            % false /Name <<>> /Type [] <<gstate>>
        /FormResDict .knownget {    % false /Name <<>> /Type [] <<res>>
          2 index knownoget {       % false /Name <<>> /Type [] <<type_dict>>
            4 index knownoget {     % false /Name <<>> /type [] <<res_dict>>
              (   **** Warning: resource was found only in an external (parent) context.\n) pdfformatwarning
              //true 7 2 roll       % <<res_dict>> true false /Name <<>> /Type []
              pop exit
            } if
          } if
        } if
      } for
      pop pop pop pop
    } ifelse
  } ifelse
} bind executeonly def

% Get the total number of pages in the document.
/pdfpagecount		% - pdfpagecount <int>
 { Trailer /Root knownoget {
    /Pages knownoget {
     dup /Count knownoget {
       dup type /integertype eq { dup 0 le } { //true } ifelse {
         pop
         dup /Kids knownoget {
           pop
           (   **** Warning:  Invalid Page count.\n) pdfformatwarning
           % find the last page and use that as the Count
           1 1 999999999 {
             dup pdffindpage?
             exch pop
             //null eq { exit } { pop } ifelse
           } for
           1 sub		% decrement to last page that we were able to find
           2 copy /Count exch put
         } {
           0 % return 0 and keep 0 page count.
           (   **** Warning:  PDF document has no pages.\n) pdfformatwarning
         } ifelse
       } if
       exch pop
     } {
         dup /Type oget /Page eq {
           << exch 1 array astore /Kids exch /Count 1 /Type /Pages >>
           Trailer /Root oget /Pages 3 -1 roll put
           1
           (   **** Warning:  No /Pages node. The document /Root points directly to a page.\n)
           pdfformatwarning
       } {
         (   **** Warning:  Page count not found; assuming 1.\n)
         pdfformatwarning
         pop 1
       } ifelse
     } ifelse
     } {
     0
     }ifelse
  }{
   0
  } ifelse
 } bind executeonly def

% Check for loops in the 'page tree' but accept an acyclic graph.
% - verify_page_tree -
/verify_page_tree {
  Trailer /Root knownoget {
    /Pages knownoget {
      10 dict begin
      /Count pdfpagecount def
      /verify_page_tree_recursive {
        Count 0 gt {
          dup 1 def
          dup /Kids knownoget {
            { oforce
              dup //null ne {
                currentdict 1 index known {
                  (   **** Error: there's a loop in the Pages tree. Giving up.\n) pdfformaterror
                  /verify_page_tree cvx /syntaxerror signalerror
                } if
                verify_page_tree_recursive
              } {
                pop
              } ifelse
            } forall
          } {
            /Count Count 1 sub def
          }ifelse
          currentdict exch undef
          } {
            pop
            (   **** Error: Too many pages in Page tree.\n) pdfformaterror
        } ifelse
      } def
      verify_page_tree_recursive
      end
    } if
  } if
} bind executeonly def

/pdffindpage? {		% <int> pdffindpage? 1 null 	(page not found)
                        %  <int> pdffindpage? 1 noderef (page found)
                        %  <int> pdffindpage? 0 null	(Error: page not found)
  Trailer /Root oget /Pages get
    {		% We should be able to tell when we reach a leaf
                % by finding a Type unequal to /Pages.  Unfortunately,
                % some files distributed by Adobe lack the Type key
                % in some of the Pages nodes!  Instead, we check for Kids.
      dup oforce /Kids knownoget not { exit } if
      exch pop //null
      0 1 3 index length 1 sub {
         2 index exch get
         dup oforce dup /Kids known { /Count oget } { pop 1 } ifelse
                % Stack: index kids null noderef count
         dup 5 index ge { pop exch pop exit } if
         5 -1 roll exch sub 4 1 roll pop
      } for exch pop
                % Stack: index null|noderef
      dup //null eq { pop pop 1 //null exit } if
    } loop
} bind executeonly def

% Find the N'th page of the document by iterating through the Pages tree.
% The first page is numbered 1.
/pdffindpageref {		% <int> pdffindpage <objref>
  dup pdffindpage?
                % Stack: index countleft noderef
   1 index 1 ne { pop pop /pdffindpage cvx /rangecheck signalerror } if
   exch pop
   PageIndex 2 index 1 sub 65533 .min 2 index oforce put
   PageNumbers 1 index oforce 3 index dup 65534 le
    { put }
    { pop pop pop }	% don't store more than 65534 pagenumbers
   ifelse
   exch pop
} bind executeonly def
/pdffindpage {		% <int> pdffindpage <pagedict>
  pdffindpageref oforce
} bind executeonly def

% Find the N'th page of the document.
% The first page is numbered 1.
/pdfgetpage		% <int> pdfgetpage <pagedict>
 { PageIndex 1 index 1 sub dup 65533 lt
    { get }
    { pop pop //null }
   ifelse
   dup //null ne
    { exch pop oforce }
    { pop pdffindpage }
   ifelse
 } bind executeonly def

% Find the page number of a page object (inverse of pdfgetpage).
/pdfpagenumber		% <pagedict> pdfpagenumber <int>
 {	% We use the simplest and stupidest of all possible algorithms....
   PageNumbers 1 index .knownget
    { exch pop
    }
    { 1 1 PageCount 1 add	% will give a rangecheck if not found
       { dup pdfgetpage oforce 2 index eq { exit } if pop
       }
      for exch pop
    }
   ifelse
 } bind executeonly def

% Arrange the four elements that define a rectangle into a 'normal' order.
/normrect_elems   % <x1> <y1> <x2> <y2> normrect_elems <llx> <lly> <urx> <ury>
{
    4 { % Bug 693919
      dup type dup /integertype ne exch /realtype ne and {
         (   **** Error: replacing malformed number ') pdfformaterror pdfstring cvs pdfformaterror
         (' with 0.\n) pdfformaterror
         (               Output may be incorrect.\n) pdfformaterror
         0
      } if
      4 1 roll
    } repeat
    exch 4 1 roll			% <x2> <x1> <y1> <y2>
    2 copy gt { exch } if		% <x2> <x1> <lly> <ury>
    4 2 roll 2 copy lt { exch } if	% <lly> <ury> <urx> <llx>
    4 1 roll exch			% <llx> <lly> <urx> <ury>
} bind executeonly def

% Arrange a rectangle into a 'normal' order.  I.e the lower left corner
% followed by the upper right corner.
/normrect 	% <rect> normrect <rect>
{
    aload pop normrect_elems 4 array astore
} bind executeonly def

/fix_empty_rect_elems % </Name> <x1> <y1> <x2> <y2> fix_empty_rect_elems <x1> <y1> <x2'> <y2'>
{  dup 3 index eq { //true } { 1 index 4 index eq } ifelse {
     pop pop pop pop
     (   **** Warning:  File has an empty ) pdfformaterror pdfstring cvs pdfformaterror
     (. Using the current page size instead.\n) pdfformaterror
     (                  Output may be incorrect.\n) pdfformaterror
     0 0 currentpagedevice /PageSize get aload pop
   } {
     5 -1 roll pop
   } ifelse
} bind executeonly def

/boxrect		% <llx> <lly> <urx> <ury> boxrect <x> <y> <w> <h>
 { exch 3 index sub exch 2 index sub
 } bind executeonly def
/resolvedest {		% <name|string|other> resolvedest <other|null>
  dup type /nametype eq {
    Trailer /Root oget /Dests knownoget {
      exch knownoget not { //null } if
    } {
      pop //null
    } ifelse
  } {
    dup type /stringtype eq {
      Trailer /Root oget /Names knownoget {
        /Dests knownoget {
          exch nameoget
        } {
          pop //null
        } ifelse
      } {
        pop //null
      } ifelse
    } if
  } ifelse
} bind executeonly def

% Procedures to do the necessary transformations of view destinations
% <PDF2PS_matrix> <rot> <view> -- <view'>
/viewdestprocs 8 dict dup begin
    /Fit  { exch pop exch pop } bind executeonly def
    /FitH {
        aload length 2 lt {
          1 array astore
          3 1 roll pop pop
        }{
          0 4 -1 roll 1 and 0 eq { exch } if
          4 -1 roll transform exch pop
          2 array astore
        } ifelse
    } bind executeonly def
    /FitV {
        aload length 2 lt {
          1 array astore
          3 1 roll pop pop
        }{
          0 4 -1 roll 1 and 0 ne { exch } if
          4 -1 roll transform pop
          2 array astore
        } ifelse
    } bind executeonly def
    /FitB  /Fit  load def
    /FitBH /FitH load def
    /FitBV /FitV load def
    /XYZ  {
        dup length dup 4 gt {
          pop /viewdestprocs cvx /rangecheck signalerror
        }{
          dup 4 eq {
            pop aload pop
          } {
            dup 3 eq {
              pop aload pop //null
            } {
              dup 2 eq {
                pop aload pop //null //null
              } {
                dup 1 eq {
                  pop aload pop //null //null //null
                } {
                  pop /viewdestprocs cvx /rangecheck signalerror
                } ifelse
              } ifelse
            } ifelse
          } ifelse
        } ifelse
        3 1 roll
        2 copy 7 -1 roll 1 and 0 ne { exch } if	4 2 roll    % odd rotation switches x<->y
        2 { dup //null eq { pop 0 } if exch } repeat	    % replace nulls with 0
        7 -1 roll transform				    % transform coordinates
        2 { 3 -1 roll //null eq { pop //null } if exch } repeat % put the nulls back
        3 -1 roll
        4 array astore
    } bind executeonly def
    /FitR {
        exch pop
        aload pop
        2 { 5 index transform 4 2 roll } repeat normrect_elems
        5 array astore
        exch pop
    } bind executeonly def
end readonly def

/linkdest {		% <link|outline> linkdest
                        %   ([/Page <n>] /View <view> | ) <link|outline>
  dup /NewWindow knownoget {
    /NewWindow exch 3 -1 roll
  } if
  dup /F knownoget {
    /File exch 3 -1 roll
  } if
  dup /Dest knownoget
    {
      resolvedest
      dup type /dicttype eq { /D knownoget not { //null } if } if
      dup //null eq
       { pop }
       { dup 0 oget
         //false % don't have a page# and transformation matrix (yet)
         1 index type /dicttype eq {
           1 index /Type knownoget {
             /Page eq {
               pop % the "false" flag
               dup pdf_cached_PDF2PS_matrix exch
               dup /Rotate pget not { 0 } if cvi 90 idiv exch
               pdfpagenumber /CumulativePageCount where {pop CumulativePageCount}{0}ifelse add
               //true % now we have a page# and a transformation matrix
             } if
           } if
         } if
         % stack: <link|outline> <dest>	( <PDF2PS_matrix> <rot>	<page#>	true  |	 <page> false )
         {
           /Page exch 6	2 roll
           % stack: [/Page <page#>] <link|outline> <dest> <PDF2PS_matrix> <rot>
           3 -1 roll dup length 1	sub 1 exch getinterval /View 4 1 roll
           % stack: [/Page <page#>] <link|outline> /View <PDF2PS_matrix> <rot> <view>
          //viewdestprocs 1 index 0 get get exec
           3 -1 roll
        } {
           dup type /integertype eq {
             /CumulativePageCount where {pop CumulativePageCount}{0}ifelse add
             /Page exch 1 add 4 2 roll
           } {
             pop
           } ifelse
           dup length 1 sub 1 exch getinterval /View exch 3 -1 roll
         } ifelse
       }
      ifelse
    }
   if
} bind executeonly def


%% Used to recursively check dictionaries for any /.gs.pdfobj# keys
%% and remove them if so
%% -any- /Removepdfobj# -any-

/Removepdfobj#
{
  dup type /dicttype eq {
    dup /.gs.pdfobj# known {
      dup /.gs.pdfobj# undef
    } if
    dup {Removepdfobj# 2 index 3 1 roll put} forall
  } if
}bind executeonly def

% <pagedict> mark ... -proc- <page#> <error>
/namedactions 8 dict dup begin
  /FirstPage { 1 /CumulativePageCount where {pop CumulativePageCount}{0}ifelse add //false } bind executeonly def
  /LastPage { pdfpagecount /CumulativePageCount where {pop CumulativePageCount}{0}ifelse add //false } bind executeonly def
  /NextPage { counttomark 2 add index pdfpagenumber 1 add dup pdfpagecount gt exch /CumulativePageCount where {pop CumulativePageCount}{0}ifelse add exch} bind executeonly def
  /PrevPage { counttomark 2 add index pdfpagenumber 1 sub dup 1 lt exch /CumulativePageCount where {pop CumulativePageCount}{0}ifelse add exch} bind executeonly def
end readonly def
% <pagedict> <annotdict> -proc- -

% **** The following procedure should not be changed to allow clients
% **** to directly interface with the constituent procedures. GSview
% **** and some Artifex customers rely on the pdfshowpage_init,
% **** pdfshowpage_setpage, pdfshowpage_finish so all logic should be
% **** implemented in one of those three procedures.
/pdfshowpage		% <pagedict> pdfshowpage -
 { dup /Page exch store
   pdfshowpage_init     % <pagedict>
   pdfshowpage_setpage  % <pagedict>
   pdfshowpage_finish   % -
 } bind executeonly def

/pdfpagecontents	% <pagedict> pdfpagecontents <contents>
 { } bind executeonly def

/pdfshowpage_init 	% <pagedict> pdfshowpage_init <pagedict>
 { /DSCPageCount DSCPageCount 1 add store
 } bind executeonly def

/get_media_box { % <pagedict> get_media_box <box> <bool>
  /MediaBox pget {
    oforce_array //true
  } {
    (   **** Error: Page has no /MediaBox attribute. Using the current page size.\n)
    pdfformaterror
    (               Output may be incorrect.\n) pdfformaterror
    [ 0 0 currentpagedevice /PageSize get aload pop ] //false
  } ifelse
} bind executeonly def

/get_any_box { % <pagedict> get_any_box <box name> <box>
  //systemdict /UseBleedBox .knownget dup { and } if {
    dup /BleedBox pget {
      /BleedBox exch
    } if
  } if
  //systemdict /UseTrimBox .knownget dup { and } if {
    dup /TrimBox pget {
      /TrimBox exch
    } if
  } if
  dup type /arraytype ne {
    //systemdict /UseArtBox .knownget dup { and } if {
      dup /ArtBox pget {
        /ArtBox exch
      } if
    } if
  } if
  dup type /arraytype ne {
    //systemdict /UseCropBox .knownget dup { and } if {
      dup /CropBox pget {
        /CropBox exch
      } if
    } if
  } if
  dup type /arraytype ne {
    /MediaBox exch get_media_box pop
  } {
    oforce_elems              % <<pdict>> /SomeBox x0 y0 x1 y1
    %% Complicated stuff. We need to use the 'Box' we identified (if any), but we
    %% need to clamp the boundaries of the 'Box' to the MediaBox. This appears to
    %% be what Acrobat does. The complication arises because the Box values don't
    %% have to be sensibly positive, its permissible to have the MediaBox set up
    %% so that it extends down and left instead of up and right. We take care of the
    %% content when we st up the CTM, but we do need to make sure that we clamp
    %% the BoundingBox, and that means we need to take direcitonality into account...

    6 -1 roll get_media_box { % /SomeBox x0 y0 x1 y1 [MediaBox]
      aload pop               % /SomeBox x0 y0 x1 y1 X0 Y0 X1 Y1

      %% Start with the width, get the X0 and X1 values of the MediaBox
      3 index                 % /SomeBox x0 y0 x1 y1 X0 Y0 X1 Y1 X0
      2 index                 % /SomeBox x0 y0 x1 y1 X0 Y0 X1 Y1 X0 X1
      gt {
        %% Media extends to left
        4 -1 roll             % /SomeBox x0 y0 x1 y1 Y0 X1 Y1 X0
        8 -1 roll             % /SomeBox y0 x1 y1 Y0 X1 Y1 X0 x0
        .min                  % /SomeBox y0 x1 y1 Y0 X1 Y1 mX0
        7 1 roll              % /SomeBox mX0 y0 x1 y1 Y0 X1 Y1
        exch                  % /SomeBox mX0 y0 x1 y1 Y0 Y1 X1
        5 -1 roll             % /SomeBox mX0 y0 y1 Y0 Y1 X1 x1
        .max                  % /SomeBox mX0 y0 y1 Y0 Y1 mX1
        5 1 roll              % /SomeBox mX0 mX1 y0 y1 Y0 Y1
      }{
        %% Media extends to right
        4 -1 roll             % /SomeBox x0 y0 x1 y1 Y0 X1 Y1 X0
        8 -1 roll             % /SomeBox y0 x1 y1 Y0 X1 Y1 X0 x0
        .max                  % /SomeBox y0 x1 y1 Y0 X1 Y1 mX0
        7 1 roll              % /SomeBox mX0 y0 x1 y1 Y0 X1 Y1
        exch                  % /SomeBox mX0 y0 x1 y1 Y0 Y1 X1
        5 -1 roll             % /SomeBox mX0 y0 y1 Y0 Y1 X1 x1
        .min                  % /SomeBox mX0 y0 y1 Y0 Y1 mX1
        5 1 roll              % /SomeBox mX0 mX1 y0 y1 Y0 Y1
      } ifelse

      %% Now deal with the height
      2 copy                  % /SomeBox mX0 mX1 y0 y1 Y0 Y1 Y0 Y1
      gt {
        %% Media extends down
        exch                  % /SomeBox mX0 mX1 y0 y1 Y1 Y0
        4 -1 roll             % /SomeBox mX0 mX1 y1 Y1 Y0 y0
        .min                  % /SomeBox mX0 mX1 y1 Y1 mY0
        3 1 roll              % /SomeBox mX0 mX1 mY0 y1 Y1
        .max                  % /SomeBox mX0 mX1 mY0 mY1
      }{
        %% Media extends up
        exch                  % /SomeBox mX0 mX1 y0 y1 Y1 Y0
        4 -1 roll             % /SomeBox mX0 mX1 y1 Y1 Y0 y0
        .max                  % /SomeBox mX0 mX1 y1 Y1 mY0
        3 1 roll              % /SomeBox mX0 mX1 mY0 y1 Y1
        .min                  % /SomeBox mX0 mX1 mY0 mY1
      } ifelse
      exch                    % /SomeBox mX0 mX1 mY1 mY0
      3 1 roll                % /SomeBox mX0 mY0 mX1 mY1
    } {
      pop
    } ifelse
    4 array astore            % /SomeBox [mX0 mY0 mX1 mY1]
  } ifelse
} bind executeonly def

% Compute the matrix that transforms the PDF->PS "default" user space
/pdf_PDF2PS_matrix {	% <pdfpagedict> -- matrix
  matrix currentmatrix matrix setmatrix exch
  % stack: savedCTM <pdfpagedict>
  dup get_any_box
  % stack: savedCTM <pdfpagedict> /Trim|Crop|Art|MediaBox <Trim|Crop|Art|Media Box>
  oforce_elems normrect_elems fix_empty_rect_elems 4 array astore
  //systemdict /PDFFitPage known {
    PDFDEBUG { (Fiting PDF to imageable area of the page.) = flush } if
    currentpagedevice /.HWMargins get aload pop
    currentpagedevice /PageSize get aload pop
    % Adjust PageSize and .HWMargins for the page portrait/landscape orientation
    2 copy gt	% PageSize_is_landscape
    7 index aload pop 3 -1 roll sub 3 1 roll exch sub exch
    10 index /Rotate pget not { 0 } if cvi 90 idiv 1 and 0 ne { exch } if
    gt	% Box_is_landscape
    xor		% PageSize_is_landscape(or square) xor'ed with Box_is_lanscape suggests rotate
    2 index 2 index eq not and {	% don't rotate if Page is square
      1 index 0 translate 90 rotate	% add in a rotation
      PDFDEBUG { (    Rotating the page for best fit) = flush } if
      2 copy ne {
        % rotate the .HWMargins
        2 copy lt {
          6 2 roll 4 -1 roll 6 -2 roll
        } {
          6 2 roll 4  1 roll 6 -2 roll
        } ifelse
        % rotate the page dimensions
        exch
      } if
    } if
    3 -1 roll sub 3 1 roll exch sub exch
    % stack: savedCTM <pdfpagedict> <Crop|Media Box> Xmin Ymin Xmax Ymax
    PDFDEBUG { (    Translate up by [ ) print 3 index =print (, ) print 2 index =print ( ]) = flush } if
    3 index 3 index translate		% move origin up to imageable area
    2 index sub exch 3 index sub exch 4 2 roll pop pop
            % stack: savedCTM <pdfpagedict> [Box] XImageable YImageable
    2 index aload pop 2 index sub exch 3 index sub exch 4 2 roll pop pop
    5 index /Rotate pget not { 0 } if 90 cvi idiv 1 and 0 ne { exch } if
            % stack: savedCTM <pdfpagedict> [Box] XImageable YImageable XBox YBox
    4 copy
    3 -1 roll exch div 3 1 roll div .min
            % stack: savedCTM <pdfpagedict> [Box] XImageable YImageable XBox YBox scale
    PDFDEBUG { (    Scale by ) print dup = flush } if
    5 -4 roll
            % stack: savedCTM <pdfpagedict> [Box] scale XImageable YImageable XBox YBox
    3 index 2 index 6 index mul sub 2 div 3 index 2 index 7 index mul sub 2 div
    PDFDEBUG { (    Centering translate by [ ) print 1 index =print (, ) print dup =print ( ]) = flush } if
    translate pop pop pop pop
  } {
    //systemdict /NoUserUnit .knownget not { //false } if {
      1
    } {
      1 index /UserUnit knownoget {
        PDFDEBUG { (Scaling due to UserUnit by ) print dup = flush } if
      } {
        1
      } ifelse
    } ifelse
  } ifelse
  % stack: savedCTM <pdfpagedict> [Box] scale
  dup scale
  % Rotate according to /Rotate
  aload pop boxrect
  {
    {     pop pop }
    { -90 rotate pop neg 0 translate }
    { 180 rotate neg exch neg exch translate }
    {  90 rotate neg 0 exch translate pop }
  }
  5 index /Rotate pget not { 0 } if cvi
  PDFDEBUG { dup 0 ne { (Rotating by ) print dup =print ( degrees.) = flush } if } if
  90 idiv 3 and get exec
  % Now translate to the origin given in the Crop|Media Box
  exch neg exch neg translate
  % stack: savedCTM <pdfpagedict>
  pop
  matrix currentmatrix exch setmatrix
} bind executeonly def

% Cache the matrix that transforms the PDF->PS "default" user space
% into <pdfpagedict> under the key //PDF2PS_matrix_key, then return it
/PDF2PS_matrix_key (PDF->PS matrix) cvn def
/pdf_cached_PDF2PS_matrix {  % <pdfpagedict> -- <PDF2PS_matrix>
  dup //PDF2PS_matrix_key .knownget {
    exch pop
  } {
    dup dup pdf_PDF2PS_matrix //PDF2PS_matrix_key exch put
    //PDF2PS_matrix_key get
  } ifelse
} bind executeonly def
currentdict /PDF2PS_matrix_key undef

/.pdfshowpage_Install {	% <pagedict> [<prevproc>] .pdfshowpage_Install -
  0 get exec
  pdf_cached_PDF2PS_matrix concat
} bind executeonly def

/pdfshowpage_setpage {	% <pagedict> pdfshowpage_setpage <pagedict>
  6 dict begin		% for setpagedevice
        % Stack: pdfpagedict
  % This comment is no longer true, and is maintained here for history only:
  %
  % UseCIEColor is always true for PDF; see the comment in runpdf above
  %
  % We now test the page to see if it defines any Default* colour spaces and
  % only set UseCIEColor if it does. This prevents a spurious warning from
  % pdfwrite about not using UseCIEColor with pdfwrite.
  %
    pdfshowpage_detect_cspacesub {
      /UseCIEColor //true def
    } if

  % Only lock in Orientation if we need to for pdfmarks
  .writepdfmarks { /Orientation 0 def } if
  currentpagedevice
        % Stack: pdfpagedict currentpagedevicedict
  1 index get_any_box
        % Stack: pdfpagedict currentpagedevicedict /BoxName [box]
  oforce_elems normrect_elems fix_empty_rect_elems boxrect 4 2 roll pop pop
  3 index /Rotate pget not { 0 } if cvi 90 idiv 1 and 0 ne { exch } if
  % stack: pdfpagedict currentpagedevicedict boxwidth boxheight
  //systemdict /PDFFitPage known {
    % Preserve page size,
    % but choose portrait/landscape depending on box width:height ratio
    % (if box width == height, select portrait orientation)
    gt
    1 index /PageSize get aload pop
    2 copy gt
    4 -1 roll ne { exch } if
  } {
    % Set the page size.
    //systemdict /NoUserUnit .knownget not { //false } if not {
      3 index /UserUnit knownoget {
        dup 4 -1 roll mul 3 1 roll mul
      } if
    } if
  } ifelse
  2 array astore /PageSize exch def
  % Determine the number of spot colors used on the page.  Note: This searches
  % the pages resources.  It may be high if a spot color is in a resource but
  % is not actually used on the page.
  currentpagedevice /PageSpotColors known { /PageSpotColors 2 index countspotcolors def } if

  % If the user told us to use a named OutputIntent
  systemdict /UseOutputIntent .knownget {
    cvn
    % Check to see if this page has such an OutputIntent
    2 index /OutputIntents knownoget {
      {
        dup /OutputConditionIdentifier get cvn
        dup /Custom eq {
          pop
          dup /Info get cvn
        }if
        2 index eq {
          %% Found the required OutputIntent
          /DestOutputProfile knownoget {
            [ /ICCBased 3 -1 roll ] ICCBased-resolve
            1 get .set_outputintent
            ()
          } if
          pop
          exit
        }{
          pop
        } ifelse
      }
      forall
      pop
    }{
      pop
    }ifelse
  } if

  % Let the device know if we will be using PDF 1.4 transparency.
  % The clist logic may need to adjust the size of bands.
  1 index pageusestransparency /PageUsesTransparency exch def
  dup /Install .knownget {
                        % Don't let the Install procedure get more deeply
                        % nested after every page.
      dup type dup /arraytype eq exch /packedarraytype eq or {
        dup length 4 eq {
          dup 2 get /.pdfshowpage_Install load eq {
            1 get 0 get	% previous procedure
          } if
        } if
      } if
  } {
    { }
  } ifelse 1 array astore
  2 index exch /.pdfshowpage_Install load /exec load
  4 packedarray cvx
        % Stack: pagedict currentpagedict installproc
  /Install exch def
        % Stack: pagedict currentpagedict
  pop currentdict end setpagedevice
} bind executeonly def

/.free_page_resources {   % - .free_page_resources -
  Page /Resources pget {
    /Shading knownoget {
      { dup type /dicttype eq {
          dup /.shading_dict known {
            dup /.shading_dict undef
          } if
        } if
        pop pop
      } forall
    } if
  } if
} bind executeonly def

/pdfshowpage_finish {	% <pagedict> pdfshowpage_finish -
   save /PDFSave exch store
   /PDFdictstackcount countdictstack store
   /PDFexecstackcount count 2 sub store
   (before exec) VMDEBUG

   % set up color space substitution (this must be inside the page save)
   pdfshowpage_setcspacesub

  .writepdfmarks {

    % Pagelabel
      pagelabeldict begin dopagelabel end
    % Copy the boxes.
        % Copy the boxes.
    { /CropBox /BleedBox /TrimBox /ArtBox } {
      2 copy pget {
        % .pdfshowpage_Install transforms the user space do same here with the boxes
        oforce_elems
        2 { Page pdf_cached_PDF2PS_matrix transform 4 2 roll } repeat
        normrect_elems 4 index 5 1 roll fix_empty_rect_elems 4 array astore
        mark 3 1 roll {/PAGE pdfmark} stopped {cleartomark} if
      } {
        pop
      } ifelse
    } forall
  } if		% end .writepdfmarks

        % Display the actual page contents.
   9 dict begin
   /BXlevel 0 def
   /BMClevel 0 def
   /OFFlevels 0 dict def
   /BGDefault currentblackgeneration def
   /UCRDefault currentundercolorremoval def
        %****** DOESN'T HANDLE COLOR TRANSFER YET ******
   /TRDefault currenttransfer def
  matrix currentmatrix 2 dict
  2 index /CropBox pget {
    oforce_elems normrect_elems boxrect
    4 array astore 1 index /ClipRect 3 -1 roll put
  } if
  dictbeginpage setmatrix
  /DefaultQstate qstate store

  count 1 sub /pdfemptycount exch store
        % If the page uses any transparency features, show it within
        % a transparency group. The scan was performed during pdfshowpage_setpage
        % and the result was set in the pagedevice dictionary. Use it rather than
        % scanning again IF it is present. If the pdfshowpage_setup was not called
        % (eg GSView 5) then it will not be present, so we must rescan.
  currentpagedevice /PageUsesTransparency .knownget not {dup pageusestransparency} if
  dup /PDFusingtransparency exch def {
    % If the current device isn't CMYK, or if it is a HighLevelDevice (pdfwrite) we
    % don't need the special handling of Overprint transparency, so disable the checking.
    currentpagedevice dup /Colors get 4 lt exch /HighLevelDevice known or {
      /checkOPtrans { pop //false } def	% NB: original will be restored from PDFsave
    } if
    % Show the page within a PDF 1.4 device filter.
    0 .pushpdf14devicefilter {
      /DefaultQstate qstate store		% device has changed -- reset DefaultQstate
      % If the page has a Group, enclose contents in transparency group.
      % (Adobe Tech Note 5407, sec 9.2)
      dup /Group knownoget {
        1 index /CropBox pget {
          /CropBox exch
        } {
          1 index get_media_box pop /MediaBox exch
        } ifelse
        oforce_elems normrect_elems fix_empty_rect_elems 4 array astore .beginpagegroup
        showpagecontents
        .endtransparencygroup
      } {
        showpagecontents
      } ifelse
    } stopped {
      % abort the transparency device
      .abortpdf14devicefilter
      /DefaultQstate qstate store	% device has changed -- reset DefaultQstate
      stop
    } if
    { } settransfer		% identity transfer during popdevice (put_image)
    .poppdf14devicefilter	% NB: reset to DefaultQstate will also restore transfer function
    /DefaultQstate qstate store	% device has changed -- reset DefaultQstate
  } {
    /checkOPtrans { pop //false } def	% no-op the check if the page doesn't use transparency
                                % NB: original will be restored from PDFsave
    showpagecontents
  } ifelse
  .free_page_resources
  % todo: mixing drawing ops outside the device filter could cause
  % problems, for example with the pnga device.
  endpage
  end			% scratch dict
  % Some PDF files don't have matching q/Q (gsave/grestore) so we need
  % to clean up any left over dicts from the dictstack

  PDFdictstackcount //false
  { countdictstack 2 index le { exit } if
    currentdict /n known not or
    end
  } loop {
    StreamRunAborted not {
      (\n   **** Error: File has unbalanced q/Q operators \(too many q's\)\n               Output may be incorrect.\n)

      //pdfdict /.Qqwarning_issued .knownget
      {
        {
          pop
        }
        {
          currentglobal //pdfdict gcheck .setglobal
          //pdfdict /.Qqwarning_issued //true .forceput
          .setglobal
          pdfformaterror
        } executeonly ifelse
      } executeonly
      {
        currentglobal //pdfdict gcheck .setglobal
        //pdfdict /.Qqwarning_issued //true .forceput
        .setglobal
        pdfformaterror
      } executeonly ifelse
    } executeonly if
  } executeonly if
  pop
  count PDFexecstackcount sub { pop } repeat
  (after exec) VMDEBUG
  Repaired		% pass Repaired state around the restore
  RepairedAnError
  PDFSave restore
  currentglobal //pdfdict gcheck .setglobal
  //pdfdict /.Qqwarning_issued //false .forceput
  .setglobal
  /RepairedAnError exch def
  /Repaired exch def
} bind executeonly odef

% Display the contents of a page (including annotations).
/showpagecontents {	% <pagedict> showpagecontents -
  dup		% Save the pagedict for the Annotations

  % We do a 'save' here in order to allow us to restore at the end of the page, before
  % we run the annotations. There are two reasons for this; firstly so that the graphics state
  % at the time we run the annotations is the same as when we ran the page, secondly in order
  % to empty the font cache before we run the annotations.
  %
  % Bug #700096 an annotation uses Helvetica but doesn't embed it, however the page *does*
  % use an embedded Helvetica, which is subset and not prefixed as such. For this file to
  % render correctly we must not use the font from the page, but must find a replacement.
  % However the file for Bug #695897 has a page which uses two versions of the same font,
  % one embedded, one not. In order for *that* file to render correctly we *must* use the
  % embedded font as a substitute for the missing font. So we divorce the fonts used
  % for the page from the fonts used for Annotations, this allows both files to work as
  % expected.
  %
  % We also need a countdictstack, so that we can check the dictionaries on the dictioanry
  % stack after we run the page contents, and 'end' an extra ones before we try to restore
  % otherwise we might try to restore back to a point before one of those dictionaries existed.
  %
  save
  countdictstack
  3 -1 roll
  count 1 sub  /pdfemptycount exch store
  /Contents knownoget not { 0 array } if
  dup type /arraytype ne { 1 array astore } if {
    oforce dup type /dicttype eq {
      //false resolvestream pdfopdict .pdfrun
    } {
      (**** Error: The Page /Contents array contains an element which is not a stream\n            This page will not display correctly\n\n)
      pdfformaterror
      pop exit
    }ifelse
  } forall
  % check for extra garbage on the ostack and clean it up
  count pdfemptycount sub dup 0 ne {
    (   **** Error: File did not complete the page properly and may be damaged.\n)
    pdfformaterror
    (               Output may be incorrect.\n) pdfformaterror
    { pop } repeat
  } {
    pop
  } ifelse

  % Top of the stack should ow be the count of dictionaries on the stack at the time
  % we did a save. If there are more than there were then, end dictionaries until
  % we get back to the sme number.
  {
    countdictstack 1 index le {exit}if
    end
  } loop
  % discard the count of dictionaries
  pop
  % and restore the state. This will take us back to a point before any fonts
  % used on the page were defined, so the annotations won't inherit any of
  % them.
  restore

  % Draw the annotations
  //systemdict /ShowAnnots .knownget not { //true } if {
    /Annots knownoget {
      { oforce
        dup //null ne {
        .writepdfmarks
        %%
        %% We don't want to preserve annotations with ps2write, because we don't convert them
        %% back into pdfmarks on output.
        %%
        /ForOPDFRead /GetDeviceParam .special_op {
          exch pop
        }{
          //false
        }ifelse
        not
        and
        //systemdict /PreserveAnnots .knownget not {//true} if and {
            mark exch {preserveannot} PDFSTOPONERROR {exec}{stopped {(Error: Ignoring invalid annotation, output may be incorrect.\n) pdfformaterror} if} ifelse cleartomark
          }{
            mark exch {drawannot} PDFSTOPONERROR {exec}{stopped {(Error: Ignoring invalid annotation, output may be incorrect.\n) pdfformaterror} if} ifelse cleartomark
          } ifelse
        } {
          pop
        } ifelse
      } forall
    } if
  } if
  //systemdict /ShowAcroForm .knownget { //true eq } { //false } ifelse {
    Trailer /Root oget /AcroForm knownoget { draw_acro_form } if
  } if
} bind executeonly def

/processcolorspace {	% - processcolorspace <colorspace>
        % The following is per the PLRM3.
  currentdevice 1 dict dup /ProcessColorModel dup put .getdeviceparams
  exch pop exch pop
  dup type /nametype ne { cvn } if
  dup { setcolorspace } //.internalstopped exec { pop /DeviceRGB } if
} bind executeonly def

% ------ Transparency support ------ %

% Determine whether a page might invoke any transparency features:
%	- Non-default BM, ca, CA, or SMask in an ExtGState
%	- Image XObject with SMask
% Note: we deliberately don't check to see whether a Group is defined,
% because Adobe Illustrator 10 (and possibly other applications) define
% a page-level group whether transparency is actually used or not.
% Ignoring the presence of Group is justified because, in the absence
% of any other transparency features, they have no effect.
%
% Transparency is a 1.4 feature however we have seen files that claimed
% to be PDF 1.1 with transparency features. Bugs 689288, 691273.
/pageusestransparency {		% <pagedict> pageusestransparency <bool>
  NOTRANSPARENCY {
    pop //false
  } {
    dup //false exch {
      4 dict 1 index resourceusestransparency { pop not exit } if
      %% Check the current dictionary and its Parent (if any) to see
      %% if they both have stored object numbers. If they do then
      %% check the numbers, don't allow self-references.
      dup /Parent knownoget not { pop exit }
      {
        exch /.gs.pdfobj# .knownget
        {
          1 index /.gs.pdfobj# .knownget {
            eq {
              pop exit
            }if
          }{
            pop
          }ifelse
        }if
      } ifelse
    } loop
    % Also check for transparency in the annotation (if not in resources).
    { pop //true } { annotsusetransparency } ifelse
  } ifelse
} bind executeonly def

% Check if transparency is specified in an ExtGState dict
/extgstateusestransparency {	% <gstate dict> extgstateusestransparency <bool>
  //false exch		% Assume no transparency
  dup //null eq {
    pop % bug 692050
  } {
    {			% establish loop context
      dup /BM knownoget {
        dup /Normal ne exch /Compatible ne and { pop not exit } if
      } if
      dup /ca knownoget { 1 ne { pop not exit } if } if
      dup /CA knownoget { 1 ne { pop not exit } if } if
      dup /SMask knownoget { /None ne { pop not exit } if } if
      pop exit
    } loop
  } ifelse
} bind executeonly def

% Check if transparency is used in a Pattern
/patternusestransparency {	% <Pattern dict> patternusestransparency <bool>
  dup //null eq NOTRANSPARENCY or
  { pop //false }
  { //false exch		% Assume no transparency
    {
      4 dict 1 index resourceusestransparency { pop not exit } if
      dup /ExtGState knownoget { extgstateusestransparency { pop not exit } if } if
      pop exit
    } loop
  }
  ifelse
} bind executeonly def

% Check the Resources of a page or Form. Check for loops in the resource chain.
/resourceusestransparency {	% <dict> <dict> resourceusestransparency <bool>
  {	% Use loop to provide an exitable context.
    /Resources knownoget not { 0 dict } if
    2 copy .knownget {
      { % Some circular references may be missed because scanning stops
        % when the 1st transparency is found.
        (   **** Warning: Found circular references in resource dictionaries while checking for transparency.\n)
        pdfformatwarning
      } if
      pop //false exit
    } if
    2 copy //true put              % In the current chain.
    dup /ExtGState knownoget {
      //false exch
      { exch pop oforce extgstateusestransparency { pop //true exit } if
      } forall
      { pop //true exit } if
    } if
    dup /Pattern knownoget {
      //false exch
      { exch pop oforce patternusestransparency { pop //true exit } if
      } forall
      { pop //true exit } if
    } if
    dup /XObject knownoget {
      dup type /dicttype eq {
        //false exch
        {
          exch pop oforce
          dup //null ne {
            dup type /dicttype eq {
                dup /Subtype get
                dup /Image eq {
                  1 index /SMask oknown { pop pop not exit } if
                  1 index /SMaskInData knownoget {
                    0 ne { pop pop not exit } if
                  } if
                } if
                /Form eq {
                  dup /Group known {pop pop //true exit}{
                  3 index exch resourceusestransparency { not exit } if
                  } ifelse
                } {
                  pop
                } ifelse
            } {
              pop
              (   **** Warning: Ignoring non-dictionary /XObject attribute while checking for transparency.\n)
              pdfformatwarning
            } ifelse
          } {
            pop
          } ifelse
        } forall
        { pop //true exit } if
      } {
        (   **** Warning: Ignoring non-dictionary /XObject while checking for transparency.\n)
        pdfformatwarning
        pop
      } ifelse
    } if
    dup /Font knownoget {
      //false exch
      {
        exch pop oforce
        dup type /dicttype eq {
          dup /Subtype knownoget {
            /Type3 eq
            {
              3 index exch resourceusestransparency
              { pop //true exit } if
            }
            {pop} ifelse
          }
          {
            pop
          }ifelse
        }
        { % probably a name object
          pop
        }ifelse
      } forall
      { pop //true exit } if
    } if
    2 copy //false put             % Visited but not in the current chain.
    pop //false exit
  } loop
  exch pop
} bind executeonly def

% Check if the annotations on a page use transparency
/annotsusetransparency {	% <page dict> annotsusetransparency <bool>
   //false exch			% Assume no transparency
   /Annots knownoget {		% Get Annots array
     {
       oforce
       dup //null ne {
         dup /Subtype knownoget {
           /Highlight eq {      % Highlight annotation is always implemented
             pop pop //true exit  % as transparency.
           } if
         } if
         dup /AP knownoget {	% Get appearance dict for the annoation
           /N knownogetdict { 	% Get the /N (i.e. normal) appearance stream
             4 dict exch resourceusestransparency { pop pop //true exit } if
           } if
         } if  			% If AP dict known
         dup /BM knownoget {
           //true exit
         } if
         dup /CA knownoget {
           1 le {
             pop pop //true exit
           } if
         } if
         /ca knownoget {
           1 le {
             pop //true exit
           } if
         } if
       } {
         pop
       } ifelse
     } forall			% For all annots on the page
   } if
} bind executeonly def

% Add a color name to our spot color list.  Ignore /All and /None
/putspotcolor {			% <name> <spotcolordict> putspotcolor -
  % The 'name' could be a string.  If so then convert to a name.
  exch dup type /stringtype eq { cvn } if
  dup dup /None eq exch /All eq or { pop pop } { 0 put } ifelse
} bind executeonly def

% Determine which spot colors are used within a color space  Note: This
% dict will include all colors used in Separation or DeviceN color spaces.
% Thus it may include Cyan, Magenta, Yellow, and Black.
%	<colorspace> <spotcolordict> colorspacespotcolors -
/colorspacespotcolors {
  exch dup type /arraytype eq {
    % If we have an Indexed color space then get the base space.
    dup 0 oget                    % <<>> [csp] /Type
    dup /Indexed eq {
      pop 1 oget                  % <<>> [base]
      2 copy exch colorspacespotcolors
    } {
      % Stack:  <spotcolordict> <colorspace> <colorspacetype>
      dup /Separation eq exch /DeviceN eq or {
        dup 1 oget dup type /arraytype eq {
          { oforce 2 index putspotcolor } forall
        } {
          2 index putspotcolor
        } ifelse
      } if
    } ifelse
  } if
  pop pop
} bind executeonly def

% Check the Resources of a page, form, or annotation.  Determine which spot
% colors are used within the resource  Note: The spot color dict will include
% all colors used in Separation or DeviceN color spaces.  Thus it may include
% Cyan, Magenta, Yellow, and Black.  We also pass a dict that is used to check
% for loops in the resource list.
%	<spotcolordict> <loopdict> <page/form/annot dict>
% 		 resourcespotcolors <spotcolordict> <loopdict>
/resourcespotcolors {
  {	% Use loop to provide an exitable context.
    % Exit if no Resources entry
    /Resources knownoget not { exit } if
    % Exit if we have already seen this dict
    2 copy known { pop exit } if

    % Save the Resources dict into our loop checking dict.
    2 copy 0 put

    % Scan resources that might contain a color space.
    dup /ColorSpace knownoget {
      { exch pop oforce 3 index colorspacespotcolors } forall
    } if
    dup /Pattern knownoget {
      { exch pop oforce
        dup /Shading knownoget {
          exch pop
          /ColorSpace oget 3 index colorspacespotcolors
        } {
          4 copy exch pop resourcespotcolors pop pop pop
        } ifelse
      } forall
    } if
    dup /Shading knownoget {
      { exch pop
        oforce /ColorSpace
        { oget } stopped
        {
          pop pop
          (   **** Error: invalid color space in shading, output may be incorrect.\n) pdfformaterror
        }
        { 3 index colorspacespotcolors}
        ifelse
      } forall
    } if
    /XObject knownoget {
      dup type /dicttype eq {
        { exch pop oforce
          dup type /dicttype eq {
            dup //null ne {
              dup /Subtype oget
              dup /Form eq {
                pop resourcespotcolors
              } {
                /Image eq {
                  /ColorSpace knownoget {
                    2 index colorspacespotcolors
                  } if
                } {
                  pop
                } ifelse
              } ifelse
            } {
              pop
            } ifelse
          } {
            pop
          } ifelse
        } forall
      } {
        pop % Just ignore here, already reported by resourceusestransparency.
      } ifelse
    } if
    exit
  } loop
} bind executeonly def

% Determine which spot colors are used within the annotations.  Note: This
% dict will include all colors used in Separation or DeviceN color spaces.
% Thus it may include Cyan, Magenta, Yellow, and Black.
%	<spotcolordict> <loopdict> <annotsarray>
% 		 annotsspotcolors <spotcolordict> <loopdict>
/annotsspotcolors {
  { oforce
    dup //null ne {
      /AP knownoget {	% Get appearance dict for the annoation
        /N knownogetdict {		% Get the /N (i.e. normal) appearance stream
          resourcespotcolors
        } if			% If normal appearance streamknown
      } if			% If AP dict known
    } {
      pop
    } ifelse
 } forall
} bind executeonly def

% Determine spot colors are used within a page.  We are creating a dict to
% hold the spot color names as keys.  Using a dict avoids having to worry
% about duplicate entries.  The keys in the dict contain the spot color
% names.  However the values have no meaning.  Note: This dict will include
% all colors used in Separation or DeviceN color spaces specified in the
% page's resources.  Thus it may include Cyan, Magenta, Yellow, and Black.
% There is no attempt to verify that these color spaces are actually used
% within the object streams for the page.
/pagespotcolors {		% <pagedict> pagespotcolors <spotcolordict>
  dup
  % Create a dict to hold spot color names.
  0 dict exch
  % Create a dict to be used to check for reference loops.
  4 dict exch
  % Check for color spaces in the Resources
  resourcespotcolors
  % now check upwards in the object hierarchy in case of inherited resources
  2 index
  {
    /Parent knownoget
    {
      dup 4 1 roll
      resourcespotcolors
      3 -1 roll
    }
    {
      exit
    } ifelse
  } loop
  % Also check for color spaces in the annotations.
  3 -1 roll
  /Annots knownoget { annotsspotcolors } if
  pop				% Discard reference loop dict
} bind executeonly def

% Determine how many (if any) spot colors are used by a page.
% Note:  This count does not include Cyan, Magenta, Yellow, or Black
/countspotcolors {		% <pagedict> countspotcolors <count>
  pagespotcolors		% Get dict with all spot colors
  dup length			% spot color dict length
  % Remove CMYK from the spot color count.
  [ /Cyan /Magenta /Yellow /Black ]
  { 2 index exch known { 1 sub } if } forall
  exch pop			% Remove spot color dict
} bind executeonly def

% ------ ColorSpace substitution support ------ %

%%
%% <pagedict> pdf_colorspace_detect_cspacesub <boolean>
%%
/pdf_colorspace_detect_cspacesub {
  //false exch
  /Resources knownoget {
    /ColorSpace knownoget {
      dup /DefaultGray knownoget {
        resolvecolorspace csncomp 1 eq {
          pop pop //true
        } if
      } {
        dup /DefaultRGB knownoget {
          resolvecolorspace csncomp 3 eq {
            pop pop //true
          } if
        } {
          /DefaultCMYK knownoget {
            resolvecolorspace csncomp 4 eq {
              pop //true
            } if
          } if
        } ifelse
      } ifelse
    } if
  } if
} bind executeonly def

%% <loopdict> <Objectdict>  <calling obj_num> pdfform_detect_cspacesub <boolean>
%%
/pdf_object_detect_cspacesub {
  %% use loop operator for an exitable context
  %% we need this to detect recursion/looping
  {
    exch                                      %%  <loopdict> <calling obj_num> <Objectdict>
    dup pdf_colorspace_detect_cspacesub {
      pop pop //true exit
    }{                                        %%  <loopdict> <calling obj_num> <Objectdict>
      /Resources knownoget {                  %%  <loopdict> <calling obj_num> <Resourcesdict>
        2 index 1 index known {
          %% We've already seen this object, ignore it and exit
          pop pop //false exit
        }{
          2 index 1 index //null put
        } ifelse

        /XObject knownoget {                  %%  <loopdict> <calling obj_num> <XObjectdict>
         //false exch                        %%  <loopdict> <calling obj_num> <XObjectdict> false
          %% We have files where the XObject Resource is not a dictionary
          dup type /dicttype eq {             %%  <loopdict> <calling obj_num> <XObjectdict> false

            %% check each Xobject entry in the dictionary,
            %% forall purs a key/value pair on the stack for us.
            %%
            {                                 %%  <loopdict> <calling obj_num> <XObjectdict> false key value
              exch pop                        %%  <loopdict> <calling obj_num> <XObjectdict> false value

              %% If this is an indirect reference, check if its the smae object
              %% as the current one. If its not indirect, make the object number 0
              %% for comparison purposes.
              dup type /packedarraytype eq {
                dup 0 get dup 4 index
                eq
              } {
                0 //false
              }ifelse

              %%  <calling obj_num> <XObjectdict> false value <form object or 0 if not indirect> <boolean>
              not {
                %% swap object number and value, and dereference value
                exch oforce
                %% Apparently we have files where the content of the XObject Resource dictionary is null
                dup //null ne {
                  %% and files where the indivudal XObjects are not dictionaries
                  dup type /dicttype eq {
                    dup /Subtype get /Form eq {
                      exch
                      4 index 3 1 roll pdf_object_detect_cspacesub {
                        pop //true exit
                      } if
                    } {
                      pop pop
                    }ifelse
                  }{
                    pop pop
                  } ifelse
                }{
                  pop pop
                }
                ifelse
              }{
                pop pop
              } ifelse
            } forall
          }{
            pop
          }ifelse
        } {
          %% No forms, so can't be any Default* spaces
          //false
        }ifelse
      } {
        //false
      } ifelse
    } ifelse
    %% Remove the calling object ID, return our boolean
    exch pop exit
  } loop
  %% remove and discard the loopdict
  exch pop
} bind executeonly def

%
% <pagedict> pdfshowpage_detect_cspacesub <pagedict> <boolean>
%
% this is used simply to detect whether the current page has any
% Default* color spaces defined. If it does then we want pdfshowpage_setpage
% to set UseCIEColor to true so that the Default* space is used. If the
% page doesn't use any Default* spaces, then we *don't* want to set
% UseCIEColor as that will confuse a warning in pdfwrite about
% not using UseCIEColor with pdfwrite.
%
/pdfshowpage_detect_cspacesub {
  dup 0 1 dict 3 1 roll pdf_object_detect_cspacesub

  /HighLevelDevice /GetDeviceParam .special_op {
      exch pop not exch pop
  }if
} bind executeonly def

%
%  <pagedict>   pdfshowpage_setcspacesub   <pagedict>
%
% Set up color space substitution for a page. Invocations of this procedure
% must be bracketed by the save/restore operation for the page, to avoid
% unintended effects on other pages.
%
% If any color space substitution is used, and the current color space is a
% device dependent color space, make sure the current color space is updated.
% There is an optimization in the setcolorspace operator that does
% nothing if both the current and operand color spaces are the same. For
% PostScript this optimization is disabled if the UseCIEColor page device
% parameter is true. This is not the case for PDF, as performance suffers
% significantly on some PDF files if color spaces are set repeatedly. Hence,
% if color space substitution is to be used, and the current color space
% is a device dependent color space, we must make sure to "transition" the
% current color space.
%
/pdfshowpage_setcspacesub  {
  //false
  /DefaultGray 2 index /ColorSpace //rget exec {
    resolvecolorspace dup csncomp 1 eq {
      dup type /nametype eq { 1 array astore } if
      /DefaultGray exch /ColorSpace defineresource pop
      pop //true
    } {
      pop
      (   **** Error: ignoring invalid /DefaultGray color space.\n)
      pdfformaterror
      (                 Output may be incorrect.\n) pdfformaterror
    } ifelse
  } if

  /DefaultRGB 2 index /ColorSpace //rget exec {
    resolvecolorspace dup csncomp 3 eq {
      dup type /nametype eq { 1 array astore } if
      /DefaultRGB exch /ColorSpace defineresource pop
      pop //true
    } {
      pop
      (   **** Error: ignoring invalid /DefaultRGB color space.\n)
      pdfformaterror
      (                 Output may be incorrect.\n) pdfformaterror
    } ifelse
  } if

  /DefaultCMYK 2 index /ColorSpace //rget exec {
    resolvecolorspace dup csncomp 4 eq {
      dup type /nametype eq { 1 array astore } if
      /DefaultCMYK exch /ColorSpace defineresource pop
      pop //true
    } {
      pop
      (   **** Error: ignoring invalid /DefaultCMYK color space.\n)
      pdfformaterror
      (                 Output may be incorrect.\n) pdfformaterror
    } ifelse
  } if

  { % if using color space substitution, "transition" the current color space
    currentcolorspace dup length 1 eq {  % always an array
      0 get
      dup /DeviceGray eq 1 index /DeviceRGB eq or 1 index /DeviceCMYK eq or {
        /Pattern setcolorspace setcolorspace
      } {
        pop
      } ifelse
    } {
      pop
    } ifelse
  } if
} bind executeonly def

% Write OutputIntents to device if the device handles it
/writeoutputintents {
  currentdevice 1 dict dup /OutputIntent //null put readonly
  .getdeviceparams
  mark ne { pop pop
    % device supports OutputIntent parameter
    % Make sure we don't have a badly broken PDF file!
    Trailer /Root knownoget {
      /OutputIntents knownoget {
        dup type /arraytype eq {
          {	% process all output profiles present
            oforce
            dup length dict .copydict
            dup /DestOutputProfile knownoget {
              PDFfile fileposition exch
              mark exch { oforce } forall .dicttomark
              //true resolvestream
              [ { counttomark 1 add index
                  64000 string readstring
                  not { exit } if
                } loop
              ] exch closefile
              0 1 index { length add } forall .bytestring
              0 3 2 roll {
                3 copy putinterval
                length add
              } forall pop
              exch PDFfile exch setfileposition
              1 index /DestOutputProfile 3 2 roll put
            } if
            % Convert to string array because it's easier for the device
            [ 1 index /OutputCondition knownoget not { () } if
              2 index /OutputConditionIdentifier knownoget not { () } if
              3 index /RegistryName knownoget not { () } if
              4 index /Info knownoget not { () } if
              5 index /DestOutputProfile knownoget not { () } if
            ]
            [ /OutputIntent 3 2 roll /.pdfputparams where
              { pop .pdfputparams }
              { currentdevice //null //false counttomark 1 add 3 roll .putdeviceparamsonly }
            ifelse
            pop pop
            pop	  % done with this OutputIntent dictionary
          } forall
        } {
          pop
          (   **** Error: /OutputIntent is of an incorrect type, ignoring OutputIntent.\n)
          pdfformaterror
          (                 Output may be incorrect.\n) pdfformaterror
        } ifelse
      } if	% OutputIntents known
      % tell device there are no more OutputIntents
      [ /OutputIntent [ ] /.pdfputparams where
        { pop .pdfputparams }
        { currentdevice //null //false counttomark 1 add 3 roll .putdeviceparamsonly }
        ifelse
        pop pop
    } if
  } if
} bind executeonly def

end			% pdfdict
.setglobal

%% This list of operators are used internally by various parts of the Ghostscript PDF interpreter.
%% Since each operator is a potential security vulnerability, and any operator listed here
%% is not required once the initislisation is complete and functions are bound, we undefine
%% the ones that aren't needed at runtime.
/.PDF_UNDEF_OPLIST
[
/.pdfawidthshow /.pdfwidthshow /.currentblackptcomp /.setblackptcomp
/.setfillcolor /.setfillcolorspace /.setstrokecolor /.setstrokecolorspace /.currentrenderingintent /.setrenderingintent
/.currenttextrenderingmode /.settextspacing /.currenttextspacing /.settextleading /.currenttextleading
/.settextrise /.currenttextrise /.setwordspacing /.currentwordspacing /.settexthscaling /.currenttexthscaling
/.settextlinematrix /.currenttextlinematrix /.currenttextmatrix /.settextmatrix /.currentblendmode
/.currentopacityalpha /.currentshapealpha /.currenttextknockout
/.pushextendedgstate /.popextendedgstate /.begintransparencytextgroup
/.endtransparencytextgroup /.begintransparencymaskgroup /.begintransparencymaskimage /.endtransparencymask /.image3x
/.abortpdf14devicefilter /.pdfinkpath /.pdfFormName /.setstrokeconstantalpha
/.setfillconstantalpha /.setalphaisshape /.currentalphaisshape
/.settextspacing /.currenttextspacing /.settextleading /.currenttextleading /.settextrise /.currenttextrise
/.setwordspacing /.currentwordspacing /.settexthscaling /.currenttexthscaling /.setPDFfontsize /.currentPDFfontsize
/.setdistillerparams

% Used by our own test suite files
%/.pushpdf14devicefilter    % transparency-example.ps
%/.poppdf14devicefilter     % transparency-example.ps
%/.setopacityalpha          % transparency-example.ps
%/.setshapealpha            % transparency-example.ps
%/.endtransparencygroup     % transparency-example.ps

% undefining these causes errors/incorrect output
%/.settextrenderingmode /.setblendmode /.begintransparencygroup /.settextknockout /.setstrokeoverprint /.setfilloverprint
%/.currentstrokeoverprint /.currentfilloverprint /.currentfillconstantalpha /.currentstrokeconstantalpha
] def

DELAYBIND not {
.PDF_UNDEF_OPLIST
{systemdict exch .undef} forall
systemdict /.PDF_UNDEF_OPLIST .undef
} if

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