Good software

I rely on this daily to open very large (>3000 page) PDF docments, frequently scrolling through these documents. The editing features are very useful.
Support from the company has been impressive - emails are always promptly answered and problems are trouble-shooted. They are also very receptive to feature requests. I would not hesitate to recommend this program if you are a heavy user of PDFs - especially since the built in software in OSX seems to develop a memory leak and thus it was what lead me to this program. Keep it up.

Kennethtoronto about PDF Expert – Edit, Sign PDFs, v2.0.1