How to Create a Poster Using Layer Masks in Adobe Photoshop
To do this, on the Layers panel, Duplicate the Background layer by pressing Command-J and Hide the visibility of the original Background layer. Step 3. While selecting the new layer on the Layers panel, click on the Vector Mask button to add a Layer Mask to Background copy. Step 4. While selecting the new Layer Mask, use the Brush Tool (B).