At first, you might not see any reasons to get excited about using the Gradient tool. However, after we cover layers (Chapter 3), Channels (Bonus Chapter 2), and collage techniques (Chapter 15), you should find that the Gradient tool is not only worth getting excited about, but also downright indispensable. I want to make sure you know how to edit and apply gradients before we get to those chapters, so let's give it a shot.
Unless you select an area before applying a gradient, the gradient will fill the entire image.
First let's look at how to apply gradients to an image. To apply a gradient, simply click and drag across an image ...