We should be able to automaticaly detect when a file has been rotated without updating the exif data most of the time. Exif stores the image width and height a couple of times. Cant we just check if the width/height in the exif match the widht/height of the actual image? The only cases this wont catch is bottom-right orientation (should be very rare) and cameras with square sensors(are there any?). If the width/height tags are getting molested by the gimp, then we could fall back to comparing against the aspect ratio of the embedded preview when there is one. On a more practical note, gimp seems to completely throw away any exif data when saving as a jpg(tested in 1.3,24, and 2.2.2). Perhaps this is less of a problem than it has been made out to be (or perhaps I have weird cvs versions of gimp installed). Jay Cox jaycox@xxxxxxxx O
