The GIMP (Gnu Image Manipulation Program) is a large program, with a wide range of tools that can be used to improve or modify you images. As with the Photoshop page, the following selection only covers the absolute basics!

Many of the most commonly used tools can be found on the toolbox Next

The basic rotate tools are available on the image transform menu Next

The crop and arbitrary rotation tools are available on the tools transform menu Next

A lot of the basic optimization tools are on the colors menu Next

These basic optimizations are also available on the tools colors menu Next

The blur tools have their own filter blur submenu Next

The sharpen tools have their own filter enhance submenu Next

The healing tool is on the paint tool submenu Next