Barney, I've been using GIMP for several years. I like it a lot. It's free, open source software with a lot of support that's been around for quite awhile. It has many, not all, the features of PhotoShop, far more than I've ever needed - and I do a fair amount of work with it. GIMP is available for PCs, Macs and Linux machines. Some reviewers find certain GIMP features are even better than PhotoShop's.
I've used it for all my photo editing for magazine articles and forum posts, other graphics artwork and even crude measured drawings once in awhile. Here's general info from the website:
https://www.gimp.org/about/introduction.htmlThere are multitudes of videos on using GIMP on YouTube. Avoid really old videos even if they appear to be basic intros. The software has changed enough that you
will get lost. Even some newer videos can be awful, just skip them. Any by
Logos by Nick and
Davies Media Design, among others, are very good. At the start you'll probably have to back up and rewatch a lot. The actual GIMP reference/instructions are less helpful unless you are already very familiar with graphics terminology and GIMP itself.
There is a learning curve. Many PhotoShop users who switch to GIMP complain GIMP isn't as "intuitive" as PhotoShop, but I've heard exactly the same complaints from GIMP users changing to PhotoShop.
You can do basic photo editing really quickly: scaling, cropping, adjusting brightness, contrast, hue, changing the resolution of an image for posting online...
And if you watch good tutorials and PRACTICE, you can do some really advanced stuff. There's a lot to grasp if you really want to master using it, but you can do adequate editing in a short time frame. You can even watch some PhotoShop tutorials after awhile for new ideas, when you figure out which tools are basically the same, though
might have different names.
Start with real basics: how to open a new file, simple photo edits, what individual tools do, stuff like that. There are MANY ways to do the same things with diferent tools and it's easy to get overwhelmed if you watch many different sources for tutorials as they usually have developed their own techniques and trying to keep track of them all will become impossible.
If you try it and feel you're slipping down a rabbit hole, contact me , I've probably been there too. Best, Bill Gill