After trying several combo pdf tools, this looks like the best combo I have found so far. As noted on the download page, there is little or no editing of the actual pages; since I recently found software that can convert to and from various editable forms, perhaps I can now actually reformat pdf pages, and edit as needed. It would be nice, if the developers can add such capabilities, but, as I said, this seems the best I have found up to now.
Installation: took two tries to download; activated with no problems; I like the looks of the interface.
But I dislike the captcha; my eyes are not very good, and the pictures are too small to verify what they are trying to show.