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. Comic book archive files are not a distinct file format only the file name extension differs from a standard file of the given archive type. In addition, folders may be used to group images. Occasionally GIF, BMP, and TIFF files are seen. It is supported by fourth-generation Kindle devices running firmware version 4.1.0 or later and the Kindle Fire device.Ĭomic book archive files mainly consist of image files, typically PNG (lossless compression) or JPEG (lossy compression) files, stored as a single archive file.
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. The idea was made popular by the CDisplay sequential image viewer since then, many viewers for different platforms have been created.ĪZW3 - Kindle Format 8 (KF8) is Amazon's newer version of AZW. A comic book archive or comic book reader file (also called sequential image file) is a type of archive file for sequential viewing of images, commonly for comic books.