In a world where there are plenty of PDF tools, PDF Expert distinguishes itself with a few key features. I've been a fan of Readdle's past products, and PDF Expert aims to give you a truly universal tool for dealing with PDFs, whether you are a student, educator, lawyer, doctor or anyone dealing with the "paperless office." Dave gave it a look back in March, but some new features have been added.
With PDF Expert you're able to sign documents with your finger or stylus, send documents to 9 different services (Readdle has their own) and my favorite: fill out PDF forms. On top of these features you get the usual stable of PDF management tools for sorting and annotating your files.
To see a walkthrough of these features, check out the video below. [Video was pointing to the wrong place for a bit there, apologies. -Ed.]