Changing overlap in Evince
 

Hi there, everybody
I have this problem, to which I've been looking for a solution, but to no avail. The thing is, various PDF viewers have different number of overlapping lines when one presses PgUp/PgDn, e.g. in Evince it's about 5-6 final lines of a page that appear on top after hitting PgDn, while in xpdf (with -cont option) each part is disjoint with the previous and next. Things get annoying when, for example, a scientific formula appears in the text and you see either the upper half, or the lower (unless you use Up/Down, but with a reasonable overlap this is not necessary). My question is: is it possible to set the amount of this "overlap" in Evince. So far I haven't found any config file responsible for that. I'll be grateful if anyone tells me how to do it.
Regards
wgac