Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
GIMP - GIMP is a multiplatform photo manipulation tool.
Annotable - Ultimate image annotation & markup tool
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Hover Me - Hover me lets you quickly annotate any image and easily integrate an interactive version within your own website.
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.
Picsell.ia - Annotate datasets smarter, 10x faster & cheaper.