hello dear,
i can develop your ndroid pdf app to read books in lowest budget.
I have develop this type app so i will provide you in lowest budget.
I have more than 7 years exp in ANDROID, IOS, Xcode IDE(Objective-C), Swift, Eclipse IDE, Android SDK, ADT Plugin, Java Programming, JSON, XML, Utility APIs, MySQL and SQL server database, super level UI design and much more.
For further analysis and discussion regarding your project please come to chat
Thanks