Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
DesignHill Image Resizer - Use designhill's free online optimized image resizer
GIMP - GIMP is a multiplatform photo manipulation tool.
ResizePixel - Free image editor to crop, resize, flip, rotate and convert images online
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
Crello - A simplified graphic design tool with 10,000 free templates.
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.