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-% Copyright (C) 1994, 1995, 1996, 1997, 1998 Aladdin Enterprises. All rights reserved.
-%
-% This program is free software; you can redistribute it and/or modify it
-% under the terms of the GNU General Public License as published by the
-% Free Software Foundation; either version 2 of the License, or (at your
-% option) any later version.
-%
-% This program is distributed in the hope that it will be useful, but
-% WITHOUT ANY WARRANTY; without even the implied warranty of
-% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
-% Public License for more details.
-%
-% You should have received a copy of the GNU General Public License along
-% with this program; if not, write to the Free Software Foundation, Inc.,
-% 59 Temple Place, Suite 330, Boston, MA, 02111-1307.
-
-% $Id: pdf2dsc.ps,v 1.3.4.2.2.1 2003/04/12 14:02:39 giles Exp $
-% pdf2dsc.ps
-% read pdf file and produce DSC "index" file.
-%
-% Input file is named PDFname
-% Output file is named DSCname
-%
-% Run using:
-% gs -dNODISPLAY -sPDFname=pdffilename -sDSCname=tempfilename pdf2dsc.ps
-% Then display the PDF file with
-% gs tempfilename
-%
-% Modified by Geoff Keating <geoffk@ozemail.com.au> 21/12/98:
-% Add DocumentMedia, PageMedia comments
-% Use inherited BoundingBox and Orientation
-% Reformat, add new macro 'puts', generally clean up
-% Modified by Johannes Plass <plass@dipmza.physik.uni-mainz.de> 1996-11-05:
-% Adds BoundingBox and Orientation if available.
-% Modified by rjl/lpd 9/19/96
-% Updates for compatibility with modified pdf_*.ps code for handling
-% page ranges (i.e., partial files) better.
-% Modified by Geoff Keating <Geoff.Keating@anu.edu.au> 7/3/96:
-% include Title and CreationDate DSC comments (these are displayed by
-% Ghostview);
-% reduce the size of typical output files by a factor of about 3.
-% Modified by L. Peter Deutsch 3/18/96:
-% Removes unnecessary and error-prone code duplicated from pdf_main.ps
-% Modified by L. Peter Deutsch for GS 3.33
-% Originally by Russell Lang 1995-04-26
-
-/PDFfile PDFname (r) file def
-/DSCfile DSCname (w) file def
-systemdict /.setsafe known { .setsafe } if
-
-/puts { DSCfile exch writestring } bind def
-/DSCstring 255 string def
-/MediaTypes 10 dict def
-
-% (str1) (str2) concatstr (str1str2)
-/concatstr {
- 2 copy length exch length add string
- dup dup 5 2 roll copy length
-% stack: newstring newstring str2 str1-length
- exch putinterval
-} bind def
-
- GS_PDF_ProcSet begin
- pdfdict begin
- PDFfile
- pdfopen begin
- /FirstPage where { pop } { /FirstPage 1 def } ifelse
- /LastPage where { pop } { /LastPage pdfpagecount def } ifelse
-
-% scan through for media sizes, keep them in the dictionary
- FirstPage 1 LastPage {
- pdfgetpage /MediaBox pget pop % MediaBox is a required attribute
- aload pop
- 3 -1 roll sub 3 1 roll exch sub exch
- 2 array astore
- aload 3 1 roll 10 string cvs exch 10 string cvs
- (x) exch concatstr concatstr cvn
- MediaTypes 3 1 roll exch put
- } for
-
-% write header and prolog
- (%!PS-Adobe-3.0\n) puts
- Trailer /Info knownoget
- {
- dup /Title knownoget
- {
- (%%Title: ) puts
- DSCfile exch write==
- }
- if
- /CreationDate knownoget
- {
- (%%CreationDate: ) puts
- DSCfile exch write==
- }
- if
- }
- if
- % This is really supposed to be sorted by frequency of usage...
- (%%DocumentMedia: )
- MediaTypes {
- exch pop
- 1 index puts
- (y) puts dup 1 get DSCstring cvs puts
- (x) puts dup 0 get DSCstring cvs puts
- ( ) puts dup 0 get DSCstring cvs puts
- ( ) puts 1 get DSCstring cvs puts
- ( 70 white ()\n) puts
- pop (%%+ )
- } forall
- pop
-
- (%%Pages: ) puts
- LastPage FirstPage sub 1 add DSCstring cvs puts
- (\n%%EndComments\n) puts
- (%%BeginProlog\n) puts
- (/Page null def\n/Page# 0 def\n/PDFSave null def\n) puts
- (/DSCPageCount 0 def\n) puts
- (/DoPDFPage {dup /Page# exch store pdfgetpage pdfshowpage } def\n) puts
- (GS_PDF_ProcSet begin\npdfdict begin\n) puts
- (%%EndProlog\n) puts
- (%%BeginSetup\n) puts
- DSCfile PDFname write==only
- ( \(r\) file pdfopen begin\n) puts
- (%%EndSetup\n) puts
- % process each page
- FirstPage 1 LastPage {
- (%%Page: ) puts
- dup DSCstring cvs puts
- ( ) puts
- dup DSCstring cvs puts
- (\n) puts
-
- dup pdfgetpage
- dup /MediaBox pget pop
- (%%PageMedia: y) puts
- aload pop 3 -1 roll sub DSCstring cvs puts
- (x) puts exch sub DSCstring cvs puts
- (\n) puts
- dup /CropBox pget {
- (%%PageBoundingBox: ) puts
- {DSCfile exch write=only ( ) puts} forall
- (\n) puts
- } if
- /Rotate pget {
- (%%PageOrientation: ) puts
- 90 div cvi 4 mod dup 0 lt {4 add} if
- [(Portrait) (Landscape) (UpsideDown) (Seascape)] exch get puts
- (\n) puts
- } if
-
- DSCfile exch DSCstring cvs writestring
- ( DoPDFPage\n) puts
- } for
- currentdict pdfclose
- end
- end
- end
-% write trailer
-(%%Trailer\n) puts
-(currentdict pdfclose\nend\nend\nend\n) puts
-(%%EOF\n) puts
-% close output file and exit
-DSCfile closefile
-quit
-% end of pdf2dsc.ps