The Amazon APNX file generation added to the Kindle device interface has been wildly popular. So popular that people want to use the APNX files without a Kindle. It turns out a large number of calibre uses don’t actually read using a Kindle but using one of the many reading apps Amazon produces (PC, Mac, iPad…). So I’ve created a GUI Plugin that allows users to create and save APNX files from MobiPocket (MOBI, AZW, and PRC) files. It can be found here.
Due to this feature being highly niche (only users of Amazon reading apps will have a use for it) I decided not to make it a part of calibre proper. Instead is being hosted as a 3rd party plugin on. The good news is the new Plugin Updater plugin will support my APNX plugin.