Convert media files online from one format into another (Audio, Video, Image, Document, Ebook or Archive) and Hash generator .
Sumatra PDF is a free PDF, eBook (ePub, Mobi), XPS, DjVu, CHM, Comic Book (CBZ and CBR) reader. Sumatra PDF is small, portable and starts up very fast. Visit Website
DOWNLOAD Portable SumatraPDF
Good: very fast open , save your view option to Each book.
Bad: book view not flip.