Adobe Reader has some great features - such as inserting a signature or filling in forms. However, when sharing out completed forms or PDFs with annotations, the notes do not appear. It seems as though this is best used if annotating and then printing.
Though $4.99, this app allows you to annotate video. For PE teachers, coaches, music teachers, science teachers or anyone else looking to make notes on physical actions
This could be the best $.99 spent on an app. Tools 4 Students includes 25 graphic organizers that can be annotated in the app and then shared via email.
This free app lets you easily annotate and share images, maps, and ideas. It is part of Evernote, so it is designed to easily help you remember and share your information.
This digital note taking tool leverages annotation features, audio recording, the ability to combine multiple document types and easy sharing via Dropbox or Box.
Not only does BaiBoard allow students to collaborate on a shared whiteboard via their iPads, but they can also jointly annotate PDFs. Much like with AirSketch, BaiBoard also includes the ability to do a web share. This means that when on the same network, and with the unique URL associated with the iPad, ANY device can see a student working on their BaiBoard through a browser.
Paperport Notes has an update that allows for OCR recognition. A paperport notes account is required for this to happen. Any picture that is snapped and pulled into a note can now be read by an ipad or even edited within the app.
Wondershare lets you edit PDFs from a Mac. It is less expensive than the full version of Acrobat. A great classroom example came from an EdTechTeacher summer workshop participant. She created a Wordle, which she saved as a PDF. Then she inserted a QR code into it that linked back to additional information on her blog.