I read pdf files daily and I often feel the need to underline certain parts.

Okular looks promising but doesn't deliver yet. Plus, the GUI looks terrible. Pdfedit is designed for editing, not for reading + highlighting.

So far, I've had a good experience using foxit under wine -- speed is good, almost as a native app and it has all the features I need. I'm acutally thinking of buying the pro version and get rid of the watermarks (which decently put in a corner, not over the text). And hopefully, one day they'll release a _working_ version for linux.

I hate having to use wine, but it's the only solution I have at the moment. Anyway, with the proper tweaking of the registry, the color theme matches that of ubuntu and you can sometimes forget the app you're running is a windows app.