Download GTK+2 Runtime Environment
GTK+2 Runtime Environment is the program you need to install and run the GIMP application. This is a runtime library necessary to run the one program that is used to edit photos. This library is composed by three main libraries: GLib, Pango and ATK. GLib's purpose basically is administering the low-level instructions, Pango's purpose is being in charge of the text design, and ATK's purpose is providing different utilities focused on improving the access to applications. Once you install these libraries, your photo editing will be much easier. Compose, authorize and retouch your photos; convert your image files as well. Download this completely free version here.