GIMP - free photo and graphics tool

GIMP is a free photo and graphics tool. You can download GIMP from:
http://www.gimp.org/.

GIMP has full suite of paiting tools, advanced manupilation including full alpha support, layers and channels, foreground extracting tools, transformation tools including rotate, scale, shear and flip, frame navigator for animation. GIMP supports file format including bmp , gif, jpeg, mng, pcx, pdf, png, ps, psd, svg, tiff, tga, xpm, and many others, and also file formate converting. If you can not afford PhotoShop, using GIMP may be an alternative choice.