Apple's iOS SDK use a modified version of pngcrush for converting png files in iOS bundles. Their version can also revert the changes (using the "-revert-iphone-optimizations" switch), but the original version can't.
Is there a tool that can be run on Linux and revert the iphone optimizations?
Thanks.
iphone-fixpng works in Linux. See this discussion explaining what it does. I'm linking to web.archive.org because the original is down.