> Yes I had to redefine the PS operators so that even calls
> like "systemdict /fill get exec" returned the overloaded

Good hint! I think I would have forgotten to handle this issue.

> operator (that is actually the easy  part), the hard part
> was that the architecture had to be flexible enough to
> allow you to do most of what JDF 1.1 "ColorSpaceConversion"
> specified and having an option not to convert Pure black
> objects in (Fills, strokes, gray images, imagemasks, text),
> pattern handling is also a problem.

The issue I'm interested is basically to print black strokes
and text (and maybe a few other object types as well?) with
CMYK=0,0,0,1 and not to translate the black color via the CRD
(regardless whether the black color was specified as e.g.
"0 0 0 setrgbcolor" or "0 setgray" or "0 0 0 1 setcmykcolor"),
although in general, UseCIEColor is enabled and the device
color spaces are remapped to CIE-based color spaces.

If you have a few helpful hints (e.g. like the need to handle
"systemdict /fill get exec", or other issues which did trouble
you), I'd appreciate if you could let me know.

Thanks,
Gerhard

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