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  1. C:\> choco install optipng

    Package testing. See package page for more details. OptiPNG: Advanced PNG Optimizer 0.7.7


    OptiPNG is a PNG optimizer that recompresses image files to a smaller size, without losing any information. This program also converts external formats (BMP, GIF, PNM and TIFF) to optimized PNG, and performs PNG integrity checks and corrections. ## Notes - Please uninstall any versions prior to version 0.7.6, otherwise you may experience problems... More information