Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
WaveShop - Open source audio editor
GIMP - GIMP is a multiplatform photo manipulation tool.
TwistedWave - TwistedWave is one of the unique audio editors that allow you to edit your music file online without any installation.
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
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.