Advanced PNG optimization program
Open Source Solid Modeling CAD
Various small and useful command-line utilities
Display, convert, and edit raster image and vector image files
Drawing, graphics conversion, software development, administration.
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Create PDF from JPEG scans and photos
Convert JASC pal files to png.
The Utah Raster Toolkit 3.0, patchlevel 2
libTERE is a portable text reassembler.
A cross platform utility for packing images onto a single sprite sheet
Texture compression and conversion program with KTX and DDS support.
Convert jpeg(exif/jfif)/mpo/jps image to/from xml