FBReaderJ - Program to read books based on the famous program FBReader for Linux-based devices. In fact, it is a clone FBReader, rewritten in Java.

Nimble and handy software for reading pdf format for Android

Laputa Book Reader - one of the best applications for reading books on screen Android-smartphone. Allows you to change the font and layout pages, create bookmarks automatically remembers the place where you left off.