Forwarding this on behalf of Rob Tijssen, who seem to be unable to post to the mailinglist: What about a lossless rotate of the jpeg and save it that way and add a attribute to it saying how much it's rotated from it's original angle. This way it's interoperable and other "rotate-attribute-aware" applications can restore it to it original angle. And for what's it worth, how about size changes, or is this stretching the limits too far? Regards, Rob