Turn to this app to read PDF and EPUB files.

Aldiko Book Reader improves the digital-book experience. It lets you control font size, font color, spacing, background color and other details that can help you read more comfortably. Possibly the best book reader app, Aldiko Book Reader also offers you the ability to arrange your book files in folders and browse their cover images. Further, you can use the app's integrated dictionary while reading any ebook.

Aldiko Book Reader has a smooth-running interface that lets you word-search texts, and it also reads PDF files, EPUB files and books that have been encrypted for Amazon's Kindle readers. If your tablet or phone runs on Android 4.0 or newer, you will enjoy all of Aldiko Book Reader's features.