Admin Forum:Losslessly compressing all images on a wiki

Anyone know of an automated way to losslessly compress all images on a wiki? Or, barring that, anyone know of an automated way of downloading every image on a wiki and then re-uploading new versions to the correct fileame? 05:10: Sun 11 Nov 2012
 * Since the wiki servers are run by Wikia, why would you be interested in that? They don't take up any room on your personal storage devices. It'd be a matter for Wikia's administrative staff.
 * Each file format has different features as well, JPEG, for instance, doesn't support lossless compression, if you recompress it, it will be lossily recompressed. ICO doesn't support compression at all. PNG lossless compression is adjustable though. GIFs don't have adjustable compression settings.
 * -- 70.24.186.245 12:09, November 11, 2012 (UTC)