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.
Now UI Kit - A beautiful Bootstrap 4 UI kit. Yours free.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Bots UI Kit - Fully customizable Sketch UI Kit for Messenger Platform
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.
Landing UI Kit - Handcrafted UI components for landing pages