Description:

Calibre is meant to be a complete e-library solution. It includes
library management, format conversion, news feeds to ebook conversion
as well as e-book reader sync features.

Calibre is primarily a ebook cataloging program. It manages your ebook
collection for you. It is designed around the concept of the logical
book, i.e. a single entry in the database that may correspond to
ebooks in several formats. It also supports conversion to and from a
dozen different ebook formats.

Supported input formats are: MOBI, LIT, PRC, EPUB, CHM, ODT, HTML,
CBR, CBZ, RTF, TXT, PDF and LRS.