I've tried Adobe Photoshop and I found it to be too expensive and too much of a resource eater. Today I decided to try GIMP, or if you want to call it the long way, "The GNU Image Manipulation Program". It's free as the air and might be enough for my photo editing needs. Let's try it. Cropping the image works like a breeze, it takes only a few seconds. I found the interface very intuitive and logical, and the whole program seems user friendly. Of course, this open source program has many more features. Let's try to make a list: Photo Enhancement - Numerous digital photo imperfections can be easily compensated for using GIMP. Fix perspective distortion caused by lens tilt simply choosing the corrective mode in the transform tools. Eliminate lens' barrel distortion and vignetting with a powerful filter but a simple interface.Digital Retouching - GIMP is ideal for advanced photo retouching techniques. Get rid of unneeded details using the clone tool, or touch up minor details easily with the new healing tool. With the perspective clone tool, it's not difficult to clone objects with perspective in mind just as easily as with the orthogonal clone.Supported File Formats - The file format support ranges from the common likes of JPEG (JFIF), GIF, PNG, TIFF to special use formats such as the multi-resolution and multi-color-depth Windows icon files. The architecture allows to extend GIMP's format capabilities with a plug-in. You can find some rare format support in the GIMP plugin registry. To save disk space, any format can be saved with an archive extension such as ZIP, GZ or BZ2 and GIMP will transparently compress the file without you needing to do any extra steps.Overall I found it to be a very good freeware that suits my needs. I think that even professional photo editors can find it very useful, instead of paying loads of money for fancy software.
You can download this little gem from here, it's free!