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pngcrush

PNG image compression utility. More information: https://pmt.sourceforge.io/pngcrush.

  • Compress a PNG file:

pngcrush {{in.png}} {{out.png}}

  • Compress all PNGs and output to 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}}