libpng is the official PNG reference library. It supports almost all PNG features, is extensible, and has been extensively tested for over 23 years.
Website: https://libpng.org/
Port: https://github.com/SerenityOS/serenity/tree/master/Ports/libpng
Dependencies: zlib
Dependents: dosbox-staging epsilon fheroes2 gltron imagemagick imgcat libgd mgba npiet openttd scummvm