Optimization of graphic files (PNG, JPEG)

Just my 5 cents… Using «Image Catalyst» (with lossless compression)

I download last versions (png, jpg) - it's size 12 352 332 bytes.
Process it with «Image Catalyst» (it's bundle of looseless optimizing utils).

Now it 11 923 326 bytes.
It's less for 420Kb.  (and better than with OptiPNG used in neighbour pull request - see screenshot).

http://screenshot.galaxyhost.org/img/20130423-7im-257kb.jpg