If you’re looking to create a mask in Illustrator, there are a few different ways to go about it. One way is to use the Pen tool and draw a mask around the object you want to protect. You can also use the Pathfinder tool to create a mask from multiple layers, or use the Masking Tools option in the Transparency panel. whichever method you choose, be sure to test your mask on a copy of your object before you start painting over it in Illustrator. Once you have your mask created, it’s time to start painting! ..