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kfx format

Kindle Personal Documents Now Getting Delivered in KFX Format

September 26, 2023 by Nathan 6 Comments

Kindle Paperwhite Agave Green

Amazon has started transitioning user-added Kindle personal documents to their newer KFX format when downloaded to Kindle apps and Kindle ereaders. Until now, the Kindle Scribe has been the only one with support for personal documents in KFX format, but now Amazon has started to expand support to other devices and apps, including the Kindle […]

Alf’s DRM Removal Tools Now Support Kindle’s KFX Format

April 14, 2018 by Nathan

Apprentice Alf

Last week Apprentice Alf released a new version of the DeDRM tools with added support for KFX format, so now you can easily import KFX books to Calibre to create backups and convert them to other formats. KFX is Amazon’s latest format for Kindle ebooks. It adds support for the newer enhanced formatting features and […]

How to Avoid KFX eBooks on Kindle for PC and Mac

September 3, 2017 by Nathan

Kindle-for-PC

Earlier this year Amazon updated their Kindle for PC and Mac programs to add more accessibility features and support for enhanced formatting. In order to add the new features, they changed the format the programs support from AZW to KFX. This behind-the-scenes change doesn’t mean anything for most people, but for those that prefer to […]

How to Convert eBooks to KFX Format for Enhanced Kindle Typesetting

March 28, 2016 by Nathan

KFX Output Plugin

There’s a new plugin available for Calibre called KFX Output that can convert ebooks into KFX format to make use of Amazon’s enhanced typesetting. This makes it possible to convert, create, and sideload KFX books onto Kindle devices and apps, even ebooks obtained from outside of Amazon. It’s been nearly a year since Amazon first […]

Kindle Previewer 3 Lets You Convert and Preview eBooks with Enhanced Typesetting

February 26, 2016 by Nathan

Kindle Previewer 3

Amazon recently released a beta version of Kindle Previewer 3, a free desktop application for Windows and Mac computers that allows authors, publishers, and ebook creators to preview how their ebooks will look when using the new enhanced typesetting engine on Kindle ereaders and Kindle apps. The previewer supports importing a number of ebook formats, […]

Are You Happy with New Kindle Typesetting and Layout Engine?

February 1, 2016 by Nathan

Amazon started rolling out a new typesetting and layout engine for Kindle books last May to improve text layout and to add new features like hyphens, kerning, and drop caps. Amazon also introduced a new font called Bookerly that was designed specifically for reading ebooks on digital screens (there’s an E Ink version and an […]

Kindle eBooks with Enhanced Typesetting Use New KFX Kindle Format

August 11, 2015 by Nathan

Bookerly Kindle

Yesterday Amazon released a major software update for their line of Kindle ebook readers. The update includes a new Bookerly font custom made for Kindles and a new typesetting and layout engine that adds things like hyphens, ligatures, and improved word spacing. One interesting detail to come out about the new layout engine is that […]

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