%PDF- %PDF-
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Current File : /www/varak.cloud/img.varak.cloud/img/foto-old/KOKOS04/Další/gs/gs6.50/lib/pdf_sec.ps |
% Copyright (C) 1996, 1997 Aladdin Enterprises. All rights reserved. % % This file is part of AFPL Ghostscript. % % AFPL Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author or % distributor accepts any responsibility for the consequences of using it, or % for whether it serves any particular purpose or works at all, unless he or % she says so in writing. Refer to the Aladdin Free Public License (the % "License") for full details. % % Every copy of AFPL Ghostscript must include a copy of the License, normally % in a plain ASCII text file named PUBLIC. The License grants you the right % to copy, modify and redistribute AFPL Ghostscript, but only under certain % conditions described in the License. Among other things, the License % requires that the copyright notice and this notice be preserved on all % copies. % $Id: pdf_sec.ps,v 1.2 2000/09/19 18:29:11 lpd Exp $ % pdf_sec.ps % Security hooks for PDF reader. % This file contains the procedures that have to take encryption into % account when reading a PDF file. There is no actual decryption code here, % because U.S. export control laws might prohibit making this file available % to anyone outside the U.S. if the code were included. Instead, you can % get the real version of this file from % http://www.ozemail.com.au/~geoffk/pdfencrypt/pdf_sec.ps % or, if the ~ character upsets your software, % http://www.ozemail.com.au/%7Egeoffk/pdfencrypt/pdf_sec.ps % NOTE: these URLs are referenced in the error message below. /.setlanguagelevel where { pop 2 .setlanguagelevel } if .currentglobal true .setglobal /pdfdict where { pop } { /pdfdict 100 dict def } ifelse pdfdict begin % Process the encryption information in the Trailer. /pdf_process_Encrypt { (\n) = ( **** The PDF input file uses encryption and cannot be processed.) = ( **** Please get and install the patch available from) = ( **** http://www.ozemail.com.au/~geoffk/pdfencrypt/pdf_sec.ps) = (\n) = flush /pdfopen cvx /invalidfileaccess signalerror } bind def % Run the code to resolve an object reference. /pdf_run_resolve { PDFfile resolveopdict .pdfrun } bind def % Prefix a decryption filter to a stream if needed. % Stack: readdata? dict parms file/string filternames /pdf_decrypt_stream { } bind def end % pdfdict .setglobal