Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
Pakible - Custom packaging, made simple. 10 boxes for $10
GIMP - GIMP is a multiplatform photo manipulation tool.
PackMojo - Create custom packaging in 3D and order in low volume
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Die Cut Templates - Generate custom professional packaging templates in seconds.
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.