Information from the World Wide Web Consortium on format comparisons, integration into HTML and XML.
Information about seven common web image formats.
Listing of image formats and their associated file extensions.
Adobe Photoshop stores color books in a native format with the file extension .acb on PCs and 8BCB file types on Macs. This is an unofficial documentation of the specification.
Specifications for various graphics file formats along with some source code and utilities.