Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Buffer - Buffer makes it super easy to share any page you're reading. Keep your Buffer topped up and we automagically share them for you through the day.
GIMP - GIMP is a multiplatform photo manipulation tool.
Post Intelligence - An intelligent social media assistant
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Conte.ai - Conte.ai is a modern web-service for businesses of all sizes from any industry
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.