v 1.8.13

optimizer for PNG files

pngcrush reads in a PNG image, and writes it out again, with the optimum filter_type and zlib_level. It uses brute force (trying filter_type none, and libpng adaptive filtering, with compression levels 3 and 9). It does the most time-consuming method last in case it turns out to be the best. Optionally, it can remove unwanted chunks or add gAMA and sRGB chunks.

To install pngcrush, paste this in macOS terminal after installing MacPorts

sudo port install pngcrush

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Installations 36
Requested Installations 20