
MOBI should first be converted to EPUB, after which the file can then be edited using one of the tools described in this guide. A variety of MOBI to EPUB conversion tools are freely available online. Both formats are also open standard, which means that they are free and publicly available, although rules exist regarding their usage.ĮPUB and MOBI files can be edited using a number of eBook editing tools. The advantage of EPUB and MOBI is that both formats display reflowable content (the text adjusts to fit the size of the screen on your reading device) as well as fixed-width layout. Amazon’s Kindle uses MOBI, a software package created by the French company Mobipocket, which was bought by Amazon in 2005.


Apple’s iBooks, Barnes & Noble’s Nook, Adobe Digital Editions, and Aldiko on Android all support EPUB. EPUB and MOBI are the most common formats for reading eBooks on eReader devices and tablets.
