The Animated Portable Network Graphics (APNG) is an unofficial extension of the Portable Network Graphics (PNG) format. APNG patch provides APNG support to libpng.
APNG support was merged!
https://github.com/pnggroup/libpng/pull/706
A standalone, portable generic Ada package for decoding images
The Generic Image Decoder is a package for decoding a broad variety of image formats, from any data stream, to any kind of medium. Unconditionally portable code: OS-, CPU-, compiler- independent code.
More information on... http://gen-img-dec.sf.net
Alire crate: https://alire.ada.dev/crates/gid
Mirror: https://github.com/zertovitch/gid
JIVAM - Java Image Viewer And Manipulator.
Free portable cross-platform and pure Java.
Support GIF/PNG/JPG/JPEG formats.
Support view, convert, resize and rotate images.
Simple and intuitive GUI.
Tested in Windows/Linux. Need JRE-1.8 - https://www.oracle.com/java/technologies/javase/javase8-archive-downloads.html.
Source - https://github.com/harp077/jivam/
If you like this - put a star on https://github.com/harp077/jivam/ for support project please.