Gimp comes to mind.
Some others are listed here: https://methodshop.com/photoshop-money/
I spent so much time installing and compiling Linux that I ended up with a programming career.
I also now use macs.
Even a dumb criminal could get around this with another photo-editing application. With the latter they'll get caught and not understand how. And legitimate uses like the author's aren't affected.
There was a way around it, although I can't remember the details.
I was doing a project on counterfeiting for a printing assignment and needed to go through the motions.