The most popular universal iPad book converter software is Calibre. One excellent feature of this program is the price – free. That's right, you can convert your ebooks at absolutely no cost. Calibre is a converter and complete e-book management tool. Any books you download to your Mac or PC can be managed through Calibre's library management feature. You can sort books by author, date published, title, size, rating, date added and many other categories. To make searching for files easier, you can also add custom tags and comments.
Calibre can convert e-books into numerous formats from many different formats. See the list below for a complete conversion formats.
Input Formats – CBC, CBZ, CBR, CHM, EPUB, HTML, FB2, LRF, LIT, MOBI, PDF, ODT, PRC, PML, PDB, RTF, RB, TCR, SNB and TXT
Output Formats – EPUB, FB2, LIT, OEB, LRF, MOBI, PML, PDB, RB, SNB, PDF, TCR and TXT
The biggest con with Calibre is possible image and table loss when converting PDF files. This is due to the way the files are embedded in the PDF file.
You can add books to your iPad, along with many other e-book readers, straight from Calibre. You can also add files to your iPad using Calibre's content server, which allows you to manage your collection online. Books converted through Calibre can be read through iBooks or Stanza on your iPad.
Another benefit of Calibre is the ability to download news from websites and RSS feeds and convert them into an e-book form. This means that this iPad book converter software not only provides you with news, but automatically converts it into an easy to read format for the iPad.