GIMP stands for GNU Image Manipulation Program. It is a freely distributed program for tasks such as photo retouching, image composition, and image creation.
GIMP is a free, open-source program. It allows you to work on layers and channels. The program has many tools for drawing, editing, and processing photos, as well as operations on graphic files.
The application also supports add-ons that significantly expand its capabilities.
Gimp is available for Windows, Linux, Mac OS.