"Plenty of PDF readers are available for Android devices and a number of them are free. But ezPDF is by far the best of the bunch. " Daniel A. Begun, author of Amazing Android Apps for Dummies.
It's free of charge to get the installer of ezPDF Reader PDF Annotate Form, also, you can read users' reviews on Droid Informer. The app works fine on Android 4.0 and higher. This application is completely safe for downloading. The tool was originally developed by Unidocs Inc. and it is related to the Productivity category.