Created attachment 111898 [details] PDF-file displayed incorrectly Someone sent me a scanned document which is displayed incorrectly in Okular. Namely, I see black bars above the text. Most other PDF viewers, such as xpdf, evince, inkscape, show this file correctly. Moreover, in print preview Okular also shows it correctly.
Created attachment 111899 [details] How the PDF-file looks like in Okular
This is a bug in poppler. Please file a bug at https://bugs.freedesktop.org/enter_bug.cgi?product=poppler under the splash backend component