I am the first to admit my graphics skills are limited, to say the least. But because I enjoy dabbling in web work, I have to at least be able to accomplish simple image edits.
For me, Irfanview is the perfect tool. Its creator, Irfan Skiljan, humbly refers to Irfanview as an image viewer, and it is superb for that task. But it also has an impressive set of image editing, converting, and optimizing features. I find it intuitive and easy to use. I have been using it since shortly after it was introduced in 1996. It is not a full-blown professional suite like Adobe Photoshop, but for the simple image chores that form the limit of my abilities, it is indispensable.
Irfanview is free for noncommercial use and for use by educational, charity, and humanitarian organizations. A license for commercial use is $12 U.S. at the time of this post.
WPPOV supports freedom from Net Neutrality and the GDPR. The Internet of the people, by the people, for the people, shall not perish from the Earth.