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.
Pure Writer - fast, smooth, fluid, at any time, never lose content, Markdown, super reliable
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
YourQuote - YourQuote is an interactive mobile app that helps you to write stories, quotes, screenplays, poems, and books.
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.
Novelist - A portable writing assistant for novelists.