If you have downloaded a script, copy or move it to your scripts directory. It can be found in the Preferences: Folders → Scripts. Do a refresh by using Filters → Script-Fu → Refresh Scripts from the ...
The free and open source photo-editing program called GIMP (GNU Image Manipulation Program) is a nice alternative to the subscription-based or boxed versions of its competition (including PhotoShop).
These are a bunch of scripts I made for GIMP that made it a little easier for me to draw a webcomic. To use the scripts, just download GIMP (available at https://www ...