[gs-bugs] [Bug 689931] PDF Graphics state w/ SMask is not rendered correctly

bugs.ghostscript.com-bugzilla-daemon at ghostscript.com bugs.ghostscript.com-bugzilla-daemon at ghostscript.com
Thu Jul 3 09:02:40 PDT 2008


ray.johnston at artifex.com changed:

           What    |Removed                     |Added
                 CC|                            |igor.melichev at artifex.com

------- Additional Comments From ray.johnston at artifex.com  2008-07-03 09:02 -------
Glancing at the code in pdf_begin_transparency_mask() this seems incorrect
since it inserts a transparency group -- the final statement of function is:
    return  pdf_begin_transparency_group(pis, pdev, pparams);

I don't see how this will properly emulate the input PDF when an SMask is part
of a ExtGState set in the Content stream, but not grouped by the input PDF.

I am cc'ing Ken and Igor on this since this, and bug 688601 relate to the
pdfwrite handling of soft masks.

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