I'm an amateur, and I've tried to install repaints for the default aircraft. I learned from instructions and videos that you have to go into the aircraft.cfg and paste in the new texture. I know Adobe Editor is a paid subscription, so is it necessary to have it to install the textures? If so, is there another way to edit the PDFs for free?
No, all you have to do is open the cfg. when it asks where ( in notebook) and put in the next number as directed in this tutorial.
If it doesn't show up stay in that tab and put a checkmark in "show all variations".
I try to open the cfg and Adobe says it cannot open the file because it is not supported.... etc.
Adobe has nothing to do with the flight sim.
Just right click on the cfg. and it will ask what App you want to use, choose notebook.