Pressing space bar or page down scrolls a page OK, but the boundary is exactly the bottom of the previous view, even if that boundary was in the middle of a line: you see the top half of the last line, page down, then you see the bottom half of that line at top of the page. 1-2 line of overlap would be great. Reproducible: Always Steps to Reproduce: 1. Read a page 2. press spacebar 3. Scroll back up a little to see first line properly
http://docs.kde.org/stable/en/kdegraphics/okular/configgeneral.html Page Up/Down overlap Here you can define the percentage of the current viewing area that should be visible after pressing Page Up/Page Down keys.
What Burkhard says