10-17-2020, 07:56 AM
I also tried almost everything in gimp and also find no solution, so I tried to do this in Paint.net 4.2.13. I have a Shellout to this program in my gimp filter menu. I found that it is possible with (in the Paint.net menu): Effects/Distort/Quadrilateral Reshape. Just use the upper sliders. It could be possible that there is such a plugin for gimp, but I have no clue.