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.
iOS 12 GUI - Free collection of UI components and screens of iOS 12
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Fludish Sketch UI Kit - 🌱 Fluent iOS UI Kit designed for Sketch.
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