pngcrush
PNG compression utility. More information: https://pmt.sourceforge.io/pngcrush.
- Compress a PNG file:
pngcrush {{in.png}} {{out.png}}
- Compress all PNGs and output them to the specified directory:
pngcrush -d {{path/to/output}} *.png
- Compress PNG file with all 114 available algorithms and pick the best result:
pngcrush -rem allb -brute -reduce {{in.png}} {{out.png}}