Gimp

The GIMP is a multiplatform photo manipulation tool. It stands for GNU image manipulation program. It is a open source and free graphics editor which used for editing and retouching images, cropping, converting in different image formats and also perform many special tasks. It has a capabilities to extensible and expandable, and also designed to used as a program of high quality photo retouching, converter of Image format, batch processing system online, renderer images as mass production etc. This have a plug-ins that offers for easy addition of new effect filters and new file formats. GIMP is a simple way of manipulating complex image with easy procedure.