[Gimp-user] Export and scale down at the same time

[Johnny Rosenberg <gurus knugum gmail com>]

Hi again!

I'm currently working with a huge image, 19262×12825, and now when I
finished it I want to export it as jpeg. In the export dialogue, I can
easily change the quality, and since the image is maybe 95 % white I can
select a very low quality number and still keep a decent quality, but the
file size is still at least 5 MiB.
The high resolution is not necessary at all. The reason for having it in
the first place is that I scanned an A2 document with an A4 scanner four
times and put it together in GIMP and I used the scanner's highest
resolution; I figured it's best to have the best possible resolution to
work with and then scale it down as the last step of the process.
Anyway, to save it, scaled down to, I don't know, maybe 20 % or even 10, I
first need to scale down the whole file, then export and then undo the
down-scaling (or quit without saving), or is there an easier way? I wish
there was a scale option in the jpeg quality dialogue or in a separate
dialogue, but that doesn't seem to be the case.
Am I missing something?


Kind regards

Johnny Rosenberg