http://calibre-ebook.com/download
calibre is a free and open source e-book library management application
developed by users of e-books for users of e-books.
It has a cornucopia of features divided into the following
main categories:
- Library Management
- E-book conversion
- Syncing to e-book reader devices
- Downloading news from the web and converting it into e-book form
- Comprehensive e-book viewer
- Content server for online access to your book collection
- E-book editor for the major e-book formats