Original Microsoft specification, in plain text format.

Provides specifications, documentation and downloads for IBM's journaled file system.

An open-source implementation of the digital document format. Features stand-alone programs and libraries for simple compression, decompression, and viewing. Includes downloads, documentation, and screenshots. [GNU GPL]

Windows and Mac software build on the DjVuLibre library. Downloads, features list, and bug tracker.

A collection of comments, impressions, comparisons, experiments and ideas regarding the PNG (Portable Network Graphics) file format, and related technologies: ZLIB (Data Compression Format and Library), and MNG (Multiple-Image Network Graphics). It is...

Includes various free tools to create and manipulate PNG and MNG images, including an optimizer that can reduce the size of PNG images and a converter that can import BMP files.

Rapid Rendering of SVG files to screen or to other more conventional filetypes, such as JPEG and PNG. [Open Source, LGPL]

Tool for converting raster images to SVG. [Open Source]

Cross-platform SVG graphics editor based on Batik. [Open Source, LGPL]

A vector-drawing editor and animator to create SVG animations. [Open Source]