Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Bynder - Bynder is a cloud-based digital asset management solution for marketing professionals looking to simplify how they manage digital content via one central portal.
GIMP - GIMP is a multiplatform photo manipulation tool.
Brand.ai - Create a style guide & integrate with Sketch, Slack, & Gulp
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Frontify Style Guide - Create beautiful web-based brand manuals in minutes
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.