Created attachment 128318 [details] problematic pdf file Using evince (Debian package) 3.22.1-2 used with libpoppbler-glib8 0.48.0-2 the attached PDF file displays as per the attached screenshot. By contrast, xpdf 3.03-17+b1 using libpoppler46 0.26.5-2+deb8u1 displays it fine.
Created attachment 128319 [details] wrong rendering in evince
Created attachment 128320 [details] correct rendering in xpdf
Works fine here, any chance you can try builing poppler from source and trying the test apps?
I built poppler 0.48.0 from the Debian package, and both qt4/tests/test-poppler-qt4 and qt5/tests/test-poppler-qt5 display the first page fine.
And I cannot reproduce the issue in evince anymore... <shrug>
The ability to specify antialiasing was added to pdftocairo and CairoOutputDev (Bug #94977) but CairoOutputDev::antialias is not always initialized, so which antialiasing option gets used by evince can be unpredictable. Also, cairo's CAIRO_ANTIALIAS_BEST does not work well. Running "pdftocairo -png -antialias best input.pdf out" on the PDF in this bug and others produces incorrect rendering. So, depending on whether during rendering CairoOutputDev::setContextAntialias is called, and depending on what value the memory allocation gods choose for CairoOutputDev::antialias, this bad rendering can be triggered.
Created attachment 128371 [details] [review] initialize CairoOutputDev::antialias This patch initializes CairoOutputDev::antialias so that CAIRO_ANTIALIAS_DEFAULT will be used unless pdftocairo or some other application sets it to another value. This fixes the rendering in evince.
opened bug #99021 for cairo's font rendering not working with CAIRO_ANTIALIAS_BEST
(In reply to Jason Crain from comment #7) > Created attachment 128371 [details] [review] [review] > initialize CairoOutputDev::antialias > > This patch initializes CairoOutputDev::antialias so that > CAIRO_ANTIALIAS_DEFAULT will be used unless pdftocairo or some other > application sets it to another value. This fixes the rendering in evince. Good catch, pushed!
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