Re: [Gimp-developer] JPEG lossless operations?

[Ofnuts <ofnuts laposte net>]

On 05/27/2012 08:26 PM, gfxuser wrote:
> Hi,
>
> reading some of the JPEG related articles here I wondered whether GIMP 
> or GEGL can do lossless rotation and cropping on JPEG images. Can you 
> tell me more about it?
>
> Thanks,
> grafxuser

For rotation, that would only work on images with dimensions that are a 
multiple of 8. For cropping, that only works if you crop on 8-pixel 
boundaries from the origin corner.

Otherwise, this also assumes that JPEG is an "editable format", while 
the recent kerfuffle around the Export function has demonstrated that it 
is not, in the current vision.