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Editing: viewcmyk.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. % % viewcmyk.ps % Display a raw CMYK file. % Requires the colorimage operator. % If SCALE is defined, maps input pixels to output pixels with that scale; % if SCALE is undefined, scales the image to fit the page. % If BITS is defined, it is the number of bits per sample (1,2,4,8,12); % if BITS is undefined, its default value is 1. /viewcmyk { % <filename> <width> viewcmyk - 20 dict begin /w exch def /fname exch def /bpc /BITS where { pop BITS } { 1 } ifelse def /f fname (r) file def mark fname status pop pop pop /flen exch def cleartomark /h flen w bpc 4 mul mul 7 add 8 idiv idiv def (Dimensions: ) print [w h] == flush % Set up scaling. /SCALE where { pop % Map pixels SCALE-for-1. Assume orthogonal transformation. SCALE 1 0 dtransform add abs div SCALE 0 1 dtransform add abs div } { % Scale the image (uniformly) to fit the page. clippath pathbbox pop pop translate pathbbox 3 -1 roll sub h div 3 1 roll exch sub w div .min dup } ifelse scale w h bpc [1 0 0 -1 0 h] f false 4 colorimage showpage f closefile end } bind def % If the program was invoked from the command line, run it now. [ .shellarguments { counttomark 2 eq { cvi viewcmyk } { cleartomark (Usage: gs -- viewcmyk.ps filename.cmyk width\n) print ( e.g.: gs -- viewcmyk.ps my.cmyk 2550\n) print flush } ifelse } { pop } ifelse
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