TPZ file format is used by Kindle devices. This file format is used as American standard for Kindle ebooks.

This file format is automatic converted file of scanned images. The elements which are scanned in a single image are shown in the form of a collection of character images along with its own ASCII code. The final rendered output is an average glyph which is constructed from a number of similar looking glyphs. The data in this file format is also compressed at high compression rate