[Commons-l] Rotation bot/script

[Platonides]

Florian Straub wrote:
> Platonides wrote on Sat, 08 Sep 2007 22:23:45 +0200:
> 
>> Imagemagick doesn't do lossless rotation.
> what does? 
> 
> What does under Windows?
> 
> Regards,
> 
> Flo

It "applies Paeth image rotation (using shear operations) to the image."
I haven't seen any statement saying that it does lossless rotation. Thus 
i assume its rotation is not lossless, so some data may be lost in the 
process (not that our users would complain).