If you wish to use the GIMP to perform your task, I describe how to do it in the following post on GIMPtalk. You will have to change the output extension from ".png" to ".jpg" though. Feel free to contact me if you experience any difficulty.
http://www.gimptalk.com/forum/topic/Gimp-Xcf-Image-Viewer-2399-1.html#15851 _______________________________________________ Gimp-user mailing list Gimp-user@lists.XCF.Berkeley.EDU https://lists.XCF.Berkeley.EDU/mailman/listinfo/gimp-user
