For anyone who's thinking of using Ruby I recommend OilyPNG instead of RMagick. It's a c extension to ChunkyPNG and is much faster if you don't need all of the

For anyone who's thinking of using Ruby I recommend OilyPNG instead of RMagick. It's a c extension to ChunkyPNG and is much faster if you don't need all of the fancy filters that come with ImageMagick. https://github.com/wvanbergen/oily_png https://github.com/wvanbergen/oily_png