Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
PanoLab - A gallery and newsfeed for PanoLab, the first panorama authoring tool on the iPhone. From Tom at...
GIMP - GIMP is a multiplatform photo manipulation tool.
Ztitch - Ztitch is a freemium standalone panorama viewer and maker that allow you to create beautiful 3D scenes and share them with your friends.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
DMD Panorama - HD 360 Panoramic Camera In A Snap
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.