No specific info about version 4.1. Please visit the main page of BookReaderFree on Mac Informer.
This application lets you convert PDFs to EPUB format.
Affordable digital book reader compatible with Intel Mac computers running Tiger (OS 10.4) or later The User is assisted with downloading free eBooks.
Read interactive e-books on the Web, mobile devices, and desktop computers.
Higosoft PDF to ePUB Converter for Mac is a commercial PDF converter.
This app allows you to convert ePub to PDF for reading eBooks on Kindle.