Advanced PNG optimization program
Display, convert, and edit raster image and vector image files
medical image conversion utility
Drawing, graphics conversion, software development, administration.
Extend abcm2ps to support direct generation of PNG, SVG and PDF files
Convert BMP images into Sixel images
Complete solution for HDR photography
A C99 implementation for reading/writing WMF and EMF Graphic Metafiles
Create PDF from JPEG scans and photos
Transforms bitmaps into vector graphics
Creates APNG animation from PNG/TGA image sequence.
Convert APNG animations into animated GIF format.
Convert GIF animations into APNG format.
Extract the colour palette from an indexed png image.
Convert JASC pal files to png.
A modified pngnq: convert png images to 256 colours.
The Utah Raster Toolkit 3.0, patchlevel 2
MPO Utilities
angif fork with transparency layers (proof of concept implementation)
A cross platform utility for packing images onto a single sprite sheet
Not your usual Architectural Modeler
Texture compression and conversion program with KTX and DDS support.
Image converter for producing ZX Spectrum screens