GIMP is the open source alternative to the proprietary Photoshop, and can do most of the same things while respecting your freedom. This show will kick off a new series of tutorials. As a note of caution, I am not an expert, I am just learning GIMP as I go. But I thought there was no harm in sharing my experiences with the HPR community. https://www.ahuka.com/?page_id=1423
Links:
https://www.youtube.com/watch?v=Q8C0LJPpr64
https://www.youtube.com/watch?v=SoP5LOFxPeY
https://www.youtube.com/watch?v=_L_MMU22bAw
https://www.youtube.com/watch?v=TiavEWDVQGE
https://www.gimp.org/tutorials/
https://www.makeuseof.com/tag/gimp-photo-editing/
https://www.wikihow.com/Use-GIMP
https://daviesmediadesign.com/20-gimp-2-10-tutorials-for-beginners/
https://www.pcworld.com/article/3451356/gimp-basics-tips-and-tricks-for-beginners.html
https://howtogimp.com/
https://issuu.com/gimpmagazine
https://www.gimp.org/downloads/
https://whatis.techtarget.com/fileformat/XCF-GIMP-document
https://gist.github.com/rbrito/e57c87d5376fd56113df058abf71bdf3
https://www.ahuka.com/?page_id=1423