A few days ago I've acquired PDF Extra as I'm not happy with my current PDF editor. Registration was without an issue, but to understand how to download was not entirely clear. (it's one of the four icons present in your account page).

The user interface is pleasant and clear. The icons are crisp and the menu contents are logical. So the app is quite easy to navigate.

PDF extra does what you can expect from it. Copy text from PDF, edit PDF documents, convert to Word, ePub, HTML, etc. Split, merge and delate pages. The app also understand digital signatures. Read Adobe signed pdf's without any issue and gave clear information on the validity of the signature.

PDF Extra also seems to have Android and iPhone apps, but I didn't test that yet. Could be nice if integrated well.

I all fine? Almost. The app opens every pdf in a new windows. That's not easy for switching between documents. I would prefer a tabbed approach. Especially because of minus point number 2. The app is not very speedy in loading. So when opening multiple docs you have wait for a full program load. These two issues are important in my opinion and therefore 4 tacos. I solved, definitely a 5, and in any case worth buying because the pricing is just super.