Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Adobe Acrobat DC - Make your job easier with Adobe Acrobat DC, the trusted PDF creator. Use Acrobat to convert, edit and sign PDF files at your desk or on the go.
GIMP - GIMP is a multiplatform photo manipulation tool.
Online Convert - Convert files like images, video, documents, audio and more to other formats with this free and fast online converter.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Wondershare PDFelement - All-in-one PDF editor
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.