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.
ibis Paint X - Drawn with + ibisPaint
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Pigment by ShapeFactory - A unique way to explore color using lighting and pigment
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.
Kdan Mobile Animation Desk - Achieve your dream of creating your own animation.