Optimisation makes files smaller (in terms of disk space) by finding optimal compression parameters and by removing unneccessary information, like file comments, EXIF tags and color profiles.
- Added Revert to Original option (restores unoptimized file)
- Added cache of already-optimized files. In some cases ImageOptim will be able to quickly skip files it knows it can't optimize any further
- OS X 10.6.8 or later