This is a good week for productivity apps on iOS. First Apple announces that they are making five of their iWork / iLife apps free and now Branchfire is taking 80% off their powerful PDF editing app. You can pick up a copy of iAnnotate PDF for just $2. This app retails for $10 and has only been priced this low one time before and that was nearly a year ago. This special pricing ends Friday September 13th at 1PM Eastern.

In addition to PDF files, iAnnote can also view, mark up, and share PowerPoint, Word and images. This iPad app can be in invaluable tool in the classroom or in the boardroom for users who are looking to be more efficient notetakers. It allows quick access to your files on the go by syncing with Dropbox, Google Drive, and other cloud storage services. All annotated PDF files are completely compatible with Adobe Acrobat or Mac Preview. Other features include new PDF creation, keyword search and continuous vertical scrolling.