Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
FlippingBook - FlippingBook changes the way you present your documents
GIMP - GIMP is a multiplatform photo manipulation tool.
Kitaboo - Kitaboo is a cloud based digital publishing platform to create, publish, distribute interactive multimedia-rich & mobile-friendly digital content.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
PubCoder - PubCoder is an all-in-one authoring and distribution platform which allows anyone without coding skills to build extraordinary digital contents specifically designed for mobile devices and to distribute them maintaining control over branding abd mktg
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.