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.
Metalsmith - An extremely simple, pluggable static site generator.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Nikola - Nikola is s static site generator tool written in Python.
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.
Assemble - The static site generator for Node.js, Grunt.js and Yeoman