Amazon Kindle Supported Ebook Formats
Kindles do not support the epub file format used by many other e book readers though epub files can be converted to other formats like mobi and pdf which kindles can read.
Amazon kindle supported ebook formats. Actually azw format is proprietary and is actually a variant of the mobi format originally created by french company mobipocket. If your mobi file contains reflowable content i e. Text heavy books we recommend you upload an epub file instead.
Azw is the primary format which is used for ebooks you buy at amazon s kindle store and can only be obtained from the amazon website. In 2015 it was in charge of more than 70 percent of ebooks sold in the us. Similar to epub amazon s file formats are intended for reflowable richly formatted e book content and support drm restrictions but unlike epub they are proprietary formats.
First of all the kindle standard format azw is used for e books you buy at amazon s kindle store. What file format are kindle books. We support books in mobi format that meet the specifications outlined in the kindle publishing guidelines.
Sometimes azw files are called kf7 kindle format 7 to distinguish them from kf8 azw3. You should know more about kindle supported ebook formats.