optipng

Install optipng

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You can download optipng from http://optipng.sourceforge.net To install optipng, run cd /usr/local/src wget -O optipng-0.7.7.tar.gz http://prdownloads.sourceforge.net/optipng/optipng-0.7.7.tar.gz?download tar xvf optipng-0.7.7.tar.gz cd optipng-0.7.7/ ./configure make make install Binary will be installed at /usr/local/bin/optipng

Install optipng from source

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optipng is image optimize for PNG format. You can download it form http://optipng.sourceforge.net/ To install, run cd /usr/local/src wget https://excellmedia.dl.sourceforge.net/project/optipng/OptiPNG/optipng-0.7.7/optipng-0.7.7.tar.gz tar xvf optipng-0.7.7.tar.gz cd optipng-0.7.7 ./configure make make install