If you have used Linux ever and looked for Image manipulation software then you must have header about gimp! For Linux based operating system it is also taken as Adobe Photoshop alternative.
GIMP has various derivatives which are used for different purposes. like GimPhoto is used by photographers and Gimp Portable can be installed and used from a USB drive.
GIMP is an open-source software first launched in 1996. gimp is actually a short name of GNU Image Manipulation Program (earlier General Image Manipulation Program). The application was created as a semester long project at University of California by two young students named Spencer Kimball and Peter Mattis. The program was originally created for Unix based OS, but later Windows installer and application for Apple MAC was created. The software is being shipped with OS like Debian and Fedora.
GIMP for Windows:
The latest version of Gimp for windows is about 19.42 MB and available can be downloaded from Gimp Download. This software is 5 star rated on CNet and has been downloaded 2,863,491 times form cnet only.
It is practically not possible to install Photoshop for editing your family photo and the latest version of Photoshop is in GB. So, installing Photoshop will also slow down your PC. Beside this Photo Shop is too expansive to buy. I am not a Photoshop user but tried some times, I can say Photoshop is not an easy application for me. It may be best for photographers and graphic designer. But I will still stuck for Picasa and GIMP for my daily use.
GIMP is easy to use tool if you try to understand it or if you have used Photoshop then the function of the GIMP is nothing to worry about, you will be easily mastered in this. However their is a big tutorial and help is available in PDF and HTML format.
If you have any problem regarding GIMP then IRC Chat is available for help. For better experience you may use IRC chat client like ICEchat.