Sumatra PDF is a free PDF, EPUB, MobiDjVu, CHM, Comic Book (CBR, and CBZ) reader for Windows.It's available for free on Windows, Mac, iOS, Android, Kindle Fire. Ebook Reader is free, and optimized for use on your Windows Phone. 2 - Make a separate epub reader as a windows 10 standard app, and the notes and highlights from the old Edge browser can be transferred to the new app.