Install optipng
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