Gimp Script Fu script to resize an image.

Copy to ~/.gimp-2.8/scripts.

Run Gimp with a batch command of "gimp-file-scale" with your file and target resize scaling ratio:

gimp -i -b '(gimp-file-scale "Pictures/image.jpg" 0.5)'

The resized file will be saved next to the original with a "-resized" suffix. For example, in the above example the output file will be "Pictures/image-resized.jpg".

This script operates on a single file. Use a Unix find to operate on many files, for example:

find Pictures -name '*.jpg' |
  xargs printf '(gimp-file-scale "%s" 0.2)\n' |
  gimp -i  -b -

GNU General Public License, version 3