Rotate file without quality issue

[HypeillingerChillinger]

This is actually a question but I did not find the correct way to create one.

What I do is rotating the image like this:

image.Mutate(x => x.Rotate(rotateMode));

which is exactly what I need - but if saved it applies the quality (JPEG) once again.

What I tried is

image.SaveAsync(newFullFilePath, new JpegEncoder());
// or
image.SaveAsJpegAsync(newFullFilePath);

The quality seems to decrease on each iteration.

[dlemstra]

Here is a great article that explains why this happens: https://cloudinary.com/blog/why_jpeg_is_like_a_photocopier.

[JimBobSquarePants]

This is actually a question but I did not find the correct way to create one.

I would suggest starting at the readme

[HypeillingerChillinger]

Actually I edited my question before you read it. My fault. That the quality of a JPG decreases in each iteration is clear. I wanted to find a way how to change the orientation in the EXIF Metadata in order to rotate without changing the image data and therefore without loss of quality.

[br3aker]

Metadata editing without re-encoding is not supported yet.

[JimBobSquarePants]

Locking because this isn’t a QA channel.