advancecomp

Recompression utilities for PNG, MNG, ZIP, and GZ files

brewmacoslinux

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Recompression utilities for .PNG, .MNG, .ZIP, and .GZ files

advpngadvmngadvzip

Recompress a PNG file with maximum compression$ advpng -z -4 image.png

Recompress a ZIP file to reduce file size$ advzip -z -4 archive.zip

Recompress a GZ file with aggressive optimization$ advzip -z -4 file.gz