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.
Paperoll.io - Print your social photos on a roll
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Prynt - Turn your smartphone into a Polaroid
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.
Mixtiles - Mixtiles is a photography application that turns your photos into self-adhesive wall art.