Amazon has announced that all modern Kindle e-readers will support the world’s most popular e-book format, EPUB. The company recently updated its Send to Kindle documentation and said it will add support for EPUB later this year. Send to Kindle breaks the ability to load MOBI as it is an older file format and doesn’t support the latest Kindle features for documents. If you already have MOBI books on your Kindle, you can still access them. Amazon is also disabling the ability to send AZW to the Kindle.
Send to Kindle is a very underrated system for sending files to supported devices registered to your Amazon account. You can send books, PDF files, and other supported documents to your e-reader. Most people send files as attachments in their favorite email client like Outlook, GMAIL or even Hotmail. You can send the documents from your main email account and the TO address is your special Kindle email account. You can learn more about this feature on their official Kindle account help file. Send to Kindle also has one dedicated app for PC and MACin addition to a Google Chrome plugin.
I think the first big step towards widespread adoption of EPUB is to add support to the existing Kindle reading system on E INK devices and then to the main Kindle app on Fire tablets. It’s actually easier now than before. This is because Amazon is in the process of transitioning its existing Java framework to React Native. This is probably why they’re waiting until fall or winter of 2022 to add support for sending EPUBS to Kindle and reading, rather than covertly converting them from one format to another.
There are many questions about Kindles that support EPUB. Will publishers and independent authors be able to submit EPUB files and sell them on Amazon? Will Amazon use its own encryption and metadata or buy a license from Adobe? They could potentially do what Kobo has been doing for a number of years. Kobo uses EPUB, but their files are called KEPUB, that’s because Kobo readers have a SQLite database that helps them read and manage books that come from their bookstore or any other bookstore that has adopted their format . In some cases the books downloaded from their webshop are stored directly in this database and in other cases the books are stored separately but referenced and maintained by the database. Regular EPUBS support uses Adobe’s RMSDK engine, while Kobo KPUB uses NetFront’s ACCESS engine. I think Amazon will probably use their own EPUB system and maybe call it AEPUB.