GIMP is a powerful, free image editor, almost as good as Photoshop in its capabilities. With it, you can process photos, create collages, draw pictures on graphic tablets, prepare website designs and much more.
Spencer Kimball, Peter Mattis oraz GIMP Development Team
GIMP is a flexible, powerful, multi-purpose and, most importantly, free image editor, which is not much inferior to Photoshop. Perfect for drawing, and for the development of web-design, and for graphic design. Allows you to apply special effects to your graphics, tools and other actions identical to Photoshop.
The editor is an excellent choice for working with raster graphics. It features convenience, extensibility and simplicity.
It has a wide range of functions with which you can:
take pictures more juicy, more accurately convey the mood
remove unnecessary items from photos
create collages and posters
draw pictures using graphic tablets (Wacom, Genius, etc.)
prepare website designs and cut ready layouts
process various scientific data (FITS, DICOM)
Supports a huge number of image formats, including PSD and ABR.
Work with masks, layers, filters and blending modes.
Huge selection of tools for photo processing and drawing.
Provides the ability to customize the editor "by itself".
The dynamics of the brushes.
Shows the actual size of the layer. Moving the image outside the canvas provides additional convenience for artists.
Intellectual bleaching allows you to choose one of the suggested bleaching options.
Editing selection. After creating an elliptical or rectangular selection, its parameters and dimensions can be specified or changed.
Expanding opportunities with the help of numerous plug-ins, extensions, brushes and gradients.
It can work with additional palettes, gradients and brushes (raster and animated). Supports work with brushes from Photoshop.
Support for hot keys.
Works with graphics tablets and other input devices.
It has a convenient Russified interface. All tools, filters and plugins are intuitive. By undocking working panels, you can achieve good ergonomic interface.
Supplied with source code under the GNU GPL license.