Is the rotation lossless for JPEGs?

[Dan Dascalescu]

Does the Rotate Left/Right command (Ctrl+Shift+Left/Right) perform a lossless rotation? I only found a very old thread (2009) in Nabble about lossless rotation, and it mentioned some kpi plugins, which I can't tell anything about via dpkg (they probably ship in the appimage).

[Simon Frei]

It is configurable, look in Metadata -> Rotation

On 22/01/17 19:34, Dan Dascalescu wrote:
> Does the Rotate Left/Right command (Ctrl+Shift+Left/Right) perform a
> lossless rotation? I only found a very old thread (2009) in Nabble
> about lossless rotation, and it mentioned some kpi plugins, which I
> can't tell anything about via dpkg (they probably ship in the appimage).

[Gilles Caulier-4]

The rotation performed to the pixels is of course lossless with JPEG. We use relevant libjpeg method for that.

Gilles Caulier

2017-01-22 20:19 GMT+01:00 Simon Frei <[hidden email]>:

It is configurable, look in Metadata -> Rotation

On 22/01/17 19:34, Dan Dascalescu wrote:
> Does the Rotate Left/Right command (Ctrl+Shift+Left/Right) perform a
> lossless rotation? I only found a very old thread (2009) in Nabble
> about lossless rotation, and it mentioned some kpi plugins, which I
> can't tell anything about via dpkg (they probably ship in the appimage).