On Wed, Sep 16, 2009 at 7:29 AM, Alex Brollo alex.brollo@gmail.com wrote:
What about adding/editing some basic EXIF data (author,licence) into uploaded Commons files that support them, like jpg? They can be deleted by a malicius user into downloads, but they will be saved when hotlinked. I don't know if any EXIF managing is currently done on Commons files; IMHO it could be useful, for a number of reasons, and not only for hotlinking.
[snip]
EXIF data is fine, but it doesn't really suffice for attribution: No on will find it; it's effectively not there.
Unfortunately all that metadata is currently stripped for any thumbnails. So in the common case that they hotlink a thumb you don't even get that much.