Learn more about Photoshop's advanced features. Use layers to perform tasks such as compositing multiple images, adding text to an image, or adding vector graphic shapes. Add a mask to a layer and use the mask to hide portions of the layer and reveal the layers below. Masking layers is a valuable compositing technique for combining multiple photos into a single image or for removing a person or object from a photo. Use filters to clean up or retouch your photos, apply special art effects that give your image the appearance of a sketch or impressionistic painting, or create unique transformations using distortions and lighting effects.