PDF Expert Premium makes managing, editing, and organizing PDFs simple — lifetime access to powerful tools designed to ...

So what I was looking for was a single app capable of pulling documents from Google, MobileMe and Dropbox, rendering them (even the large ones) with a crazy-fast engine and letting me annotate them.

Annotations are done by adding a text box ... including what is probably the most important aspect of PDF software: being able to edit the original content. In that respect, Power PDF does ...