Arve Bersvendsen

Comment from ℑaℕ on 2005-06-08 01:22

I still find pngcrush crushes a few bits smaller, not so important. Another invaluable compression option is pngquant, which can drop bit-depth to 8-bit but still retain full alpha-transparency (optipng apparantly does the same, but somehow it never worked for me). I use the following batch script in my windows path to optimally compress PNG’s:

pngcrush -brute -reduce -rem alla -d crushed *.png
pngquant -force -verbose 128 *.png
move *fs8.* crushed

This creates a crushed subdirectory where you can drag the optimal version (pngcrushed or pngquanted) up a directory to replace the originals at will.