Thus, more often than not, a KF8 file will contain both a MOBI file at the beginning and the newer KF8 version of ePub later. However, the basic format remains as a PDB file similar in structure to a MOBI. The internal format has been decoded using mobi_unpack.
It targets ePub 3 version support, but existing ePub can also be used. KF8 (also called AZW3) is essentially a compiled ePub that has utilizes a Palm database and Amazon's DRM scheme. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it. The Portable Document Format (PDF) is a file format used to present documents independent of application software, hardware, and operating systems. It is supported by fourth-generation Kindle devices running firmware version 4.1.0 or later and the Kindle Fire device. In addition, it has several other formatting options and is used by Amazon for all new Amazon eBooks. It supports HTML5 and CSS3, which were not supported through the standard AZW format. Application/pdf, application/x-pdf, application/x-bzpdf, application/x-gzpdfĪZW3 - Kindle Format 8 (KF8) is Amazon's newer version of AZW.