[gs-bugs] [Bug 692304] New: PDF/A validation reveals use of DeviceGray with -dUseCIEColor

[bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=692304

           Summary: PDF/A validation reveals use of DeviceGray with
                    -dUseCIEColor
           Product: Ghostscript
           Version: master
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P4
         Component: PDF Writer
        AssignedTo: ken.sharp at artifex.com
        ReportedBy: ken.sharp at artifex.com
         QAContact: gs-bugs at ghostscript.com
   Estimated Hours: 0.0


Since some point after the adoption of ICC colour prfiles, if we set
-dUseCIEColor for pdfwrite then we get a PDF file which includes a '0 g' at the
end of each page.

This is caused by the showpage doing an erasepage by filling an empty path.

Because of the way that this is reflected in pdfwrite, we end up setting
DeviceGray. We don't use it, but we do set it, and this can cause PDF/A
validators to complain, because DeviceGray is only valid if we have set an
OutputProfile.

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