Bug#1008280: pstoedit: silently fails with success return for some purifyeps use cases

[Thorsten Glaser]

Hi Wolfgang,

> The issue is caused because pdftops creates a PostScript file which
> contains the whole drawing as a single bitmap image (don't know why).

Oh, ouch. So, bug in poppler after all?

>> $ pdf2ps test1.pdf test4-1.ps
>> $ ps2eps test4-1.ps

Hm, not just poppler? test4-1.ps has a large encoded blob I think is
a bitmap as well… so ghostscript does the same.

> And bitmap images are not supported by pstoedit for the mpost format.

Right, of course.

> Yes - pstoedit handles PDF nicely because GhostScript handles them like
> PostScript file. Well - at least up to version 9.55. From version 9.56
> on, the default handling of PDF files in GhostScript changes to use a

Ah, ouch, so the workaround will work on bullseye and older only.

I need to convert to PS first, but all PDF to PS converters introduce
this bug (bitmap present).

Hrm… it appears that, for those files whose source is SVG (not PDF,
we do have several of that as well), I might be able to export PS
from Inkscape. Or do the stable-and-older workaround, first.

Do the poppler and/or ghostscript maintainers perhaps have an insight
in why this PDF is converted to PS with embedded bitmap?

(Even adding -dLanguageLevel=3 to pdf2ps does not make it better.)

bye,
//mirabilos
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