Use iAnnotate PDF to mark up PDFs easily on an Android device. Branchfire's free app lets you annotate, search, manage, and share high-quality PDFs on the go. It's optimized for tablets but works great on smartphones, too. The latest iAnnotate PDF release, version 1.1.4, has improved tabs for handling multiple open documents and syncs with Box's OneCloud. You can open, mark, and save PDFs directly from OneCloud.
The app's interface does a great job combining the familiar look and layout of desktop PDF tools with Android's touchscreen functionality. The left sidebar's "… Read more