Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
App Launch Checklist - Planning tool for launching your app successfully
GIMP - GIMP is a multiplatform photo manipulation tool.
Startup Toolkit - Interactive how-to guides to launch your startup
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Where To Post Your Product - A curated collection of 280+ websites to share your startup
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.