On 8/20/07, Robin Schwab <contact(a)robinschwab.ch> wrote: [snip] This brings us back to an old issue as well.. right now EXIF data isn't copied into thumbnails. This is annoying because our thumbs lose all this nice data. It would also be useful if we added 'thumbnailed flag' and a link to the wikimedia image to the EXIF of thumbs that we generate. This would make detection of uploading images derived from our thumbnails much easier. It would be even better to also copy the entire text of the image page, but just the URL would be a big improvement. We don't copy the EXIF today for good reason: some jpegs have huge blobs of data stuffed into the jpegs. A complete matrix+shaper ICC profile is much larger than most of our thumbs. There are also thumbs in the EXIF of a lot of images. Has anyone seen any written recommendations on exif data that should stripped for thumbnails?