Many companies use this software for editing photos.
I use this for our company work and this works perfectly for image editing process.
IconsExtract - Extract icons and cursors stored in EXE, DLL, OCX, CPL files
GIMP - GIMP is a multiplatform photo manipulation tool.
Quick Any2Ico - Quick Any2Ico is a FREE Portable Application that creates high quality Icon files from any File...
Affinity Photo - Affinity is the imaging and design suite for creative professionals exclusively for Mac.
IcoFX - IcoFX is an all-in-one solution for icon creation, extraction and editing.
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.