pngquant-photoshop - Photoshop plug-in for saving PNG images with pngquant compression

  •        27

It provides PNG saving better than Save for Web. Typically creates PNG files 60-70% smaller than 24/32-bit PNG from Save for Web, and unlike 8-bit PNG from Photoshop, always supports semi-transparent alpha channel.Download for Mac OS X and copy pngquant.plugin to /Applications/Adobe Photoshop C*/Plug-ins/.

http://www.fnordware.com/superpng/
https://github.com/pornel/pngquant-photoshop

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