When it comes to image processors, GIMP is the best one you will find around the market. With its innovative technology and cool interface, you will be using this program in seconds like a real expert. This is a totally free application, designed especially for people that need to add awesome effects to their photographs without paying a single penny.
It gives you the freedom to edit your images in any way you want. It comes with a multi option menu full of possibilities for you to work with.
It provides a palette you can fully rearrange and customize for better comfort and familiar elements you won't have any trouble understanding.