apngr provides the ability to:
- Combine multiple PNGs into a single APNG via
animate - Extract frames from an APNG via
extract - Query frame data from an APNG via
query - Convert a GIF into an APNG via
convert
It primarily exists as a means for testing kettek/apng and has not been used for much beyond ensuring apng's functionality.
It currently lacks support for converting disparate PNG images -- whether in size or image format -- however this will be addressed in the future either directly in the kettek/apng package or in this utility.