Adobe Photoshop is a very cool program, enabling you to do lots of awesome stuff. More specifically, it is a layered graphic editing program. Which means that if you learn how to exploit all its functions, you can create, edit and manipulate any image you want.
It might sound confusing at first, but once you spend some time with it, you’ll grasp everything in no time. First of all, layers. Every new piece of data that you add to an image is called a layer. You still see the whole image as one, but with every new piece of data added a new layer is also added. However, this doesn’t mean that you have the entire image selected and active. If you’re trying to apply something to the whole image, but you see only one portion affected, then you’re in the wrong layer.
As mentioned above, a new layer is added with each action you take. For example, if you use the text tool, by adding text to your image you will create a new layer. However, if you return to that text, edit it, change colors or whatever, you won’t create a new layer, you will still be working in the same layer. But don’t worry, you don’t have to memorize all layers in order to change something. Just press F7 to bring up all layers in the lower side of the screen.
Photoshop is an incredibly useful tool, a real powerful ally to every photographer, whether amateur or professional. It has tons of cool tools and features, and you can do just about anything you can think of to your images. If you learn how to use it, that is.