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.
TinType by Hipstamatic - Create vintage self portraits w/ Hipstamatic's new photo app
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Lens Distortion - Effects for photographers, filmmakers, and visual artists
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.
Photolemur - Photo enhancement on autopilot