Version: (using KDE 4.4.0) Installed from: SuSE RPMs I recently updated okular to okular-4.4.1-153.9 and in this version there no matter if I set background off/on, on page turn the text is initially blurred. So it is a regression -- in previous versions okular was working according to background/foreground processing setting.
This has nothing to do with "background generation", but with the fact that the shown version is taken from other available pixmaps for that page (for example the thumbnails).
What Pino said, don't see a bug in here