Download the zip file from the end of the first post at MobileRead. Install Calibre eBook Management Software.ģ. One got an error message and wouldn’t convert but the second book worked and the enhanced typesetting looks perfect on my Kindle Paperwhite 3. The plugin is still in its beta testing phase but you can manually install it into Calibre and it does indeed work, but some errors are possible. So jhowel over at MobileRead figured out how to create a plugin for Calibre that can repackage the data created by KP3 into a usable KFX file. The problem with Kindle Previewer 3 is that it doesn’t actually create KFX-formatted books it just lets you preview them. Then last month Amazon released the Kindle Previewer 3, which lets authors and publishers convert and preview their books to see how they will look when using the new format and layout settings.
Up until recently there’s been no way to create or convert ebooks into KFX format the only way to get them was to download them to a Kindle device or app that supports KFX format. Amazon created a new format for Kindle books that use the enhanced typesetting engine.