1. GIMP (General Image Manipulation Program) is a free and open-source raster graphics editor used for image retouching and editing, free transformation, and free-form drawing.
2. GIMP provides tools for selection tools, layers, masks and channels, adjustments, colors, brushes, textures, gradients, and blending. It supports many raster and vector file formats.
3. The document outlines the basic tools and functions of GIMP including selection tools, layers, transformations (rotate, scale, flip), painting and editing tools, adjustments like red-eye removal, and filters to create artistic effects like cartoonization.