Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Handwrytten - Handwritten notes straight from your device. Huge selection of cards or design your own. Handwriting service integrates with 1000's of apps.
GIMP - GIMP is a multiplatform photo manipulation tool.
Felt for iPhone - Handwritten cards for the modern world
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Inkpact - Send genuine handwritten messages in just a few clicks
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.