Transformation tools including rotate, scale, shear and flip.Multiple Undo/Redo (limited only by diskspace).Virtually unlimited number of images open at one time.Tile based memory management so image size is limited only by available disk space.Extremely powerful gradient editor and blend tool.Sub-pixel sampling for all paint tools for high quality anti-aliasing.Full suite of painting tools including Brush, Pencil, Airbrush, Clone, etc.The advanced scripting interface allows everything from the simplest task to the most complex image manipulation procedures to be easily scripted.

It is designed to be augmented with plug-ins and extensions to do just about anything. It can be used as a simple paint program, an expert quality photo retouching program, an online batch processing system, a mass production image renderer, an image format converter, etc. It is a freely distributed program for such tasks as photo retouching, image composition and image authoring.

You can also just use the default system, similar to that of Adobe.GIMP is an acronym for GNU Image Manipulation Program. Its segmented interface can be particularly useful, since it lets you change the layout of the windows at all times, adjusting them to your preference. GIMP can work with almost every current image format, such as BMP, GIF, JPEG, MNG, PCX, PNG, PSD, PS, PDF, TIFF, TGA, SVG, and XPM. These features can be extended with different plugins (there are more than a hundred). You can also use GIMP to convert an image format, process files by the batch, create vector images, and edit animated graphics. The features in GIMP are almost identical to those of any other image editor: layers, alpha channels, history, selection tools, transformation, masks, blurring, etc. It has a brush, pencil, clone stamp, and an airbrush, among other tools. You can use GIMP to edit images and to create new ones. It's a free and open-source multiplatform app that lets you do almost the same things you would do on a paid software. For several years now, GIMP (GNU Image Manipulation Program) has been one of the best free alternatives to commercial image editors like Photoshop and Corel Draw.

For mac download GIMP 2.10.34.1