Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Autodesk SketchBook - SketchBook drawing and painting software provides designers, architects, and concept artists the tools to sketch ideas quickly and create beautiful illustrations.
GIMP - GIMP is a multiplatform photo manipulation tool.
MediBang Paint - The official site for MediBang Paint, the free digital painting and manga creation software. You can download the latest version of MediBang Paint here, and get news and tutorials.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Artrage - A simple but lovely natural media painting and sketching program.
Krita - Krita is a professional FREE and open source painting program. It is made by artists that want to seaffordable art tools for everyone. Concept art. texture and matte painters, illustrations and comics.