Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
PhotoTime - Automatic face sorting & keywords tagging for your photos
GIMP - GIMP is a multiplatform photo manipulation tool.
Piwigo.org - Manage your photo collection with Piwigo. Piwigo is open source photo gallery software for the web. Designed for organisations, teams and individuals.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Facial Recognition by FB - Get notified if someone tries to use your photo on Facebook
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.