If you’re like most people, you probably don’t know how to flip a mask in Photoshop. But don’t worry, we’re going to show you how. First, open the Mask palette and select the Mask tool. Next, click on the top left corner of the mask and drag it to the right. Now, click on the bottom left corner of the mask and drag it to the left. Finally, release your mouse button and release the mask from its original location.