Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Help & Manual - Help & Manual is a documentation authoring tool that allows you to create a single source text and convert it into a number of other target formats.
GIMP - GIMP is a multiplatform photo manipulation tool.
Dr.Explain - Dr.Explain software is a help file authoring tool.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
MadCap Flare - Documentation for Any Audience, Language or Format
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.