build an animated ad in photoshop cs4.
Add a shape layer
Let's build a shape where smaller text can be easily read.
Go to the vertical Tool Bar on the left side of your screen and click on the Rectangle Tool (two tools below the Text Tool). If you see a circle or some other shape, click and hold down and a sub-menu will appear. Select the rectangle.
Draw a box over the lower 2/5 of the ad. This will create a new layer directly above the pizza photograph.
The new layer will appear in the Layers palette and will have a box representing your rectangle's color. Double click on the on box in the layer to open the color picker. Change the color to red and hit OK.