Comment 7 for bug 644168

Photos are often meant to be shared -- e.g. sent by email to a friend.

We may not know what software will be used to view the photos we share; and unfortunately there's still a lot of software out there that does not make use of the exif orientation tag. (It seems to me that Firefox and Thunderbird do not respect the exif orientation tag in jpeg files, and nor does Windows 7.) So sometimes the best thing to do is to actually rotate the image data. This applies even to odd-sized jpeg files, where rotation cannot be completely lossless. It at least needs to be an option.

Unfortunately, we can't add "Windows 7" to the "Affects" list ...

Since digital cameras usually produce jpegs of a size for which lossless rotation is possible, this really should be an option on import, as it is in many other applications.