As discussed in bug #12143 we're trying to do a better job of ensuring
that poppler bugs detected by the cairo test suite get reported to
At the current point, there are already 4 PDF tests that are disabled
in the cairo test suite. They are:
gradient-alpha, linear-gradient, text-pattern, trap-clip
I believe that all of these tests were disabled due to a single bug in
poppler having to do with transparency in gradients. But I don't have
much more detail at the moment.
I can attach some images here if desired, or someone can generate them
by re-enabling the tests in cairo's test suite, (edit the
pdf_ignored_tests list in cairo/boilerplate/cairo-boilerplate-pdf.c
and then run "make test").
Sorry for the vague report---I just wanted to ensure this issue didn't
go on forgotten.
I think file http://people.mandriva.com/~fcrozat/IC-MCC09-NEW2.pdf , generated on OS X, has the same issue Carl is reporting.
there's also an ubuntu report here:
which is presenting a similar issue with these pdf:
Attached to bug #10942 there's a patch that implements linear gradients in the cairo backend.
$ ./cairo-test-suite gradient-alpha linear-gradient text-pattern trap-clip
Compiled against cairo 1.9.3, running on 1.9.3.
Compiled against pixman 0.15.19, running on 0.15.19.
gradient-alpha.pdf.argb32 : PASS
gradient-alpha.pdf.rgb24 : PASS
linear-gradient.pdf.argb32 : PASS
linear-gradient.pdf.rgb24 : PASS
text-pattern.pdf.argb32 : PASS
text-pattern.pdf.rgb24 : PASS
trap-clip.pdf.argb32 : PASS
trap-clip.pdf.rgb24 : PASS
Frederic: I'm not sure whether it's the same issue or not, but your document look good now too.
Pedro: that document seems to have another issues, could you file a new bug report for it, please?