Photoshop CC 2019 tutorial showing how to create vintage, retro-style, graphic portraits from photos that simplify shapes and ...

Go to Filter > Pixelate > Color Halftone ... This second method is a really good way to get a subtly different dot pattern, as well as a bit more texture and a “grungy” Xerox-like result. 1.

The Color Halftone filter interface includes no preview window, so you must apply it to see its effects and undo them to change your settings. You can't apply Color Halftone to a transparent layer.