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.
Simple Scan - Project information. Part of: The Gnome Project. Maintainer: Simple Scan Development Team. Driver: Simple Scan Development Team. Licence: GNU GPL v3.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
iCopy Free Photocopier - iCopy Free Photocopier is a program that allows the Windows users to use their scan and printer to get their document and images scanned in the format they want.
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.
MetaDMS Scan Software - MetaDMS Scan Software is a free to use program for the Windows operating systems for scanning paper documents within few clicks.