MOBI
PNG files
MOBI (Mobipocket) is an e-book format developed for Mobipocket Reader. MOBI files can include features like bookmarks, annotations, and reflowable content, making them compatible with various e-reader devices.
PNG (Portable Network Graphics) is a raster graphics file format that supports lossless data compression. PNG files are commonly used for images with transparent backgrounds and high-quality graphics.
More PNG conversion tools available