[gs-bugs] [Bug 692612] New: ps2write Problem with indexed CMYK Colorspace images

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Tue Oct 18 12:10:46 UTC 2011


           Summary: ps2write Problem with indexed CMYK Colorspace images
           Product: Ghostscript
           Version: 9.04
          Platform: PC
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: normal
          Priority: P4
         Component: PS Writer
        AssignedTo: ken.sharp at artifex.com
        ReportedBy: gstest311 at arcor.de
         QAContact: gs-bugs at ghostscript.com

Created an attachment (id=8018)
 --> (http://bugs.ghostscript.com/attachment.cgi?id=8018)
ps testfile for reproducing the error with ps2ps2.bat 

i have a problem with converting a pdf file created with Adobe InDesign CS5
to postscript using pdf2ps.bat. At least one of the imagedata values of a
CMYK image is assigned to a wrong color value of the color look up table.
In order to generate a simple testfile for this bug i have converted the pdf to
a postcript file, using XPDF (XPDF have no problems with this kind of images).
Then i have stripped down the resulting ps file to the image which produces the
I have attached this file to this bug report. You can reproduce the error with
this testfile using ps2ps2.bat and the current Ghostscript release 9.04. It
seems that a value near 0 (->white) is assigned to the greatest (darkest) value
of the color table.
If i use Ghostcript 8.71 with the ps2write device the image is converted

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