Is it possible to make commercial plugins for Gimp

Question

open source

I need to make a commercial image processing application. There is an idea to make it in the form of plug-ins for Gimp. Does the license prohibit the sale of closed source plugins?

Answer 1

If I remember correctly, then there is a GPLv2 + license, i.e. You can sell, but you will definitely have to attach the source code of the plugins.
Without the source codes, it would be possible with the LGPL

Answer 2

In general, GIMP allows batch processing of images when called from the command line (as an external program), it will no longer be a plug-in and in this case you can make your program arbitrarily closed.