pngcrush
optimizes PNG (Portable Network Graphics) files
Description
Pngcrush is an optimizer for PNG (Portable Network Graphics) files. Its main purpose is to reduce the size of the PNG IDAT data stream by trying various compression levels and PNG filter methods. It also can be used to remove unwanted ancillary chunks, or to add certain chunks including gAMA, tRNS, and textual chunks.Upload more screenshots
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Homepage
http://pmt.sourceforge.net/pngcrush/
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