GIMP is an acronym for GNU Image Manipulation Program. GIMP is a free and open-source raster graphics editor used for image manipulation (retouching) and image editing, free-form drawing, transcoding between. GIMP gives artists the power and flexibility to transform images into truly unique creations. Will you release GIMP for Android or iOS devices? Features. In this video I will be showing you how to use GIMP, which is an image manipulation program. GNU Image Manipulation Program (GIMP) is a Free and Open Source, cross- platform image.