[gs-bugs] [Bug 690612] New: PDF sRGB conversion loses images

[bugs.ghostscript.com-bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=690612

           Summary: PDF sRGB conversion loses images
           Product: Ghostscript
           Version: 8.64
          Platform: PC
        OS/Version: Windows XP
            Status: UNCONFIRMED
          Severity: normal
          Priority: P4
         Component: PDF Writer
        AssignedTo: ken.sharp at artifex.com
        ReportedBy: andreas at toom.se
         QAContact: gs-bugs at ghostscript.com


I am trying to do a pdf2pdf conversion like this:

"C:\Program Files\gs\gs8.64\bin\gswin32c.exe" -q -dNOPAUSE -dBATCH -dSAFER
-dPDFSETTINGS=/screen -sDEVICE=pdfwrite -sOutputFile="c:\gs_out.pdf" -f
"c:\6916_DE.pdf"

The problem is that GhostScript is failing to convert one image so when I am
opening the resulting PDF Adobe Reader warns me about a possible error in the
file. If i change the PDFSETTINGS parameter to /print the output works but the
filesize is not reduced.

I have read the help file for ps2pdf and I have found one critical parameter,
ColorConversionStrategy. When ColorConversionStrategy is set to sRGB the image
will be removed, when set to UseDeviceIndependentColor, which is the default for
the /print setting, the image is still there but the file size is not reduced.

Best regards,
Andreas



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