There are a number of freeware computer graphics software’s available on the Internet these days. Such freeware computer graphics software’s provide excellent methods for image manipulation, composition and image retouching.

One of the most famous freeware computer graphics software’s is GIMP. GIMP stands for GNU Image manipulation program. It is free software that can be used and distributed without any cost. It has excellent features for photo retouching, imaging authoring and image composition. GIMP has a number of capabilities. The program can be used as the simplest program for paint and can be used as software for photo retouching of expert quality. It can be used as an image renderer for mass production, and also as an online batch processing system. It can also be used as an image format converter. It can reduce the image size and resolution that is used for changing the file size of the image based on its final use.

The free computer graphics software GIMP is extensible as well as expandable. It is designed to be expanded with the help of plug-ins and extensions to carry out the desired usage. It has the advanced scripting interface that allows the user to carry out most simple task to the most complicated tasks such as image manipulation procedures scripted with great ease. The platform used for writing and developing GIMP was UNIX, but the same code easily runs on Mac OS X and MS Windows. The painting features of GIMP include full group of tools like pencil, airbrush, brush, clone tool etc. It has sub pixel sampling for high quality anti aliasing for all painting tools. It is enabled with an extremely useful blend tool and gradient editor. You can custom various patterns and brushes.

One of the most important features of GIMP is that it uses tile based memory management. Therefore the image size is limited only by the disk size that is available. You can open about unlimited number of images at one time. The freeware computer graphics software GIMP has full alpha channel support and every kind of tool that you may find in software for which you pay hundreds of dollars. It supports almost all file formats of the image such as gif, pdf, jpeg, mng, pcx, ps, psd, tiff, tga, svg, xpm, and many more.

Another good freeware computer graphics software is paint.NET. It is free image editing and image manipulation software. The software is designed to run on Windows. Special feature of the software include unlimited undo, layers, special effects, and a wide range of useful and powerful tools. The programming language that was utilized to create paint.NET was C and C++. The freeware computer graphics software paint.NET was developed as an undergraduate design project under the Microsoft and is now developed and maintained by the alumni who actually developed it. The software was actually made to replace MS paint software but it has grown to become a simple but powerful tool for image editing.