Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
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.
GIMP - GIMP is a multiplatform photo manipulation tool.
Corel Painter - Corel Painter is media painting software.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Fresh Paint - Microsoft's new painting software with more realistic brushes for Windows 10
Pixlr - Pixlr® makes it easy to transform everyday images into stunning works of art.