

Amazon's Kindle Create and Kindle Textbook Creator software have produced this format for some time. KPF (Kindle Package Format) is a variant of KFX, the format that enables Enhanced Typesetting. It will be interesting to see if there are any differences in the resulting Kindle book if it is published using a Previewer generated KPF instead of a Master MOBI from KindleGen or a source format such as EPUB or MS Word. This provides a new possible workflow for publishers.

Once a book is in KPF format it can be viewed with the Previewer GUI or uploaded to Amazon for publishing. It also supports batch conversion of multiple files at once. The major change is the introduction of a command line interface that can convert source files into KPF format.
KINDLE PREVIEWER MAC SIERRA FOR MAC OS
Kindle Previewer for Mac OS 10.5 and above i386.Kindle Previewer for Windows (2003, XP, Vista, 7).Faster previewing through features like Auto flip mode, Image flip mode.Accurate rendering of your content across Amazon Kindle devices and Kindle Reader apps.Support for previewing Kindle Text Pop Ups and Kindle Panel Views.Ability to preview your content across Kindle devices and apps.Highlights of Kindle Previewer functionality

This tool is recommended for publishers, eBook conversion companies, and individual authors in combination with KindleGen to produce the highest quality Kindle books. Kindle Previewer makes it easy to preview the layout of a book and make sure its text displays properly for any orientation or font size. Kindle Previewer is a tool that emulates how books display on Kindle devices and applications.
