Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Helicon Focus - Focus stacking software: a post-processing technique that extends the depth of field in your photographs.
GIMP - GIMP is a multiplatform photo manipulation tool.
CombineZP - CombineZ is a computer program which runs on the newer versions of the Windows operating system.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Enblend/Enfuse - Enblend combines images that overlap into a single large image with no seams.
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.