Annotate+PDFs

Good Notes FREE
==== Good Notes Free version is a great app for annotating over PDF files and organizing them on a neat little bookshelf as notebooks. Within those notebooks you can add multiple PDFs or insert images from the camera rolll. Contributed by Mike Oberdick. ====

Notability $2.99
Notability is the best-selling note-taking app on iPad, iPhone and iPod touch. Sketch ideas, annotate documents, sign contracts, complete worksheets, keep a journal, jot travel notes, teach a class, make a presentation and much more. With iCloud support, your notes stay up to date on all your devices! Contributed by Brandt Schneider.