Once you have a clipping mask in place, you can add more layers to the clipping mask, and they’ll form part of it. For example, choose Layer > New > Layer and create a new layer at the very top of the clipping mask. Add it to the clipping mask by Alt-clicking (Option-clicking) the border between the two layers.
If you paint on this layer or fill it with a color and then blend it with the layers underneath, you’ll notice that the effect you create is visible only over the text portion of the image and not elsewhere (see Figure 5).
Figure 5 A clipping mask can be used to edit a selected portion of an image, using corrections such as an adjustment layer or painting.
This feature makes clipping masks a handy tool to use when editing an image. To do this, make a selection around the area to be edited, create a new layer, add a small feather to it, and fill the selection with color. Drag this layer below the image and create a clipping mask to isolate the area you want to edit.
If necessary, add new layers above the image layer and add them to the clipping mask. You can paint on these layers, or they can just be adjustment layers. When you create them as part of a clipping mask, they’ll affect only the area of the image that you selected.
Clipping masks are a handy feature not only for creating photo text effects, but for editing images. They’re a valuable addition to your Photoshop editing toolkit.