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.
Heurix.io - Heurix is a free heuristic evaluation tool that helps you work out how to improve your website.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Heurio - Do website reviews faster. Heurio eliminates the administration process and lets you focus on creating value in a collaborative and user-friendly way. Perfect for heuristic evaluation, design and development review, bug report, QA testing and more.
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.
UX Companion - A handy glossary of UX theories, tools and principles (iOS)