Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
calibre - Ebook manager, viewer & converter
GIMP - GIMP is a multiplatform photo manipulation tool.
Adobe Digital Editions - ebook reader software
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Calibre Web - Calibre Web is a web app providing a clean interface for browsing, reading and downloading eBooks...
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.