Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
GumGum - GumGum is an in-image advertising platform for publishers, marketers, agencies and brands.
GIMP - GIMP is a multiplatform photo manipulation tool.
Creatopy - Creatopy is an ad design platform that helps businesses customize, automate and scale up their ad production and delivery.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Yieldbot - Yieldbot captures and organizes web publisher intents and makes them available for advertisers to match offers and ads with the content.
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.