Aiseesoft Mac iPhone 4S ePub Transfer - Version 6.1.22 Aiseesoft iPhone 4S ePub Transfer for Mac is able to assist users to import local PDF and ePub files to iPhone 4S directly, and transfer PDF and ePub files from iPhone 4S to Mac local disk for backup. Then iPhone 4S owners don't need to worry about losing important eBooks. Moreover, this software can help you transfer these books from iPhone 4S to other iOS devices(iPod, iPhone, iPad).