[gs-bugs] [Bug 689535] Print PDF-> PS ok, PS -> PDF not ok

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

http://bugs.ghostscript.com/show_bug.cgi?id=689535





------- Additional Comments From ken.sharp at artifex.com  2007-12-21 09:26 -------

Help ? :-(

I'm at a bit of a loss with this one. While it only seems to go wrong with
pdfwrite, I can't (at the moment) see why this is the case. Alex's patch works
round the problem, but it doesn't address the underlying issue.

The job sets up a Pattern with a revolting PaintProc (it draws tiny imagemasks,
I think to create a  logo).

Anyway, the problem exhibits inside the PostScript interpreter. It sets a
colour, determines its a pattern colour, installs a capture device (I think) and
then exits with an error code which causes GS to run the PaintProc. The problem
'seems' to occur while executing the PaintProc. But it might be something
pdfwrite is doing, the PaintProc takes an age to execute in the interpreter and
I haven't found a way to isolate the specifics of the problem, whether its the
PaintProc causing the problem, or whether pdfwrite is pushing another exec.

Does anyone have any hints on how to debug this ?





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