Photoshop

Photoshop pattern overlay is a digital design technique that enables graphic designers and visual artists to add textures, overlays or patterns on top of existing images or artwork. This effect can be used to add depth, dimensionality, and visual interest

Use Creations screen to explore Pattern Overlay creations. Once you enter the workflow, you'll observe various Pattern Overlay Presets created using your photo. Select them for a full-screen preview. Check out various Pattern Overlay presets available

In this Photoshop tutorial, you will learn how to use any image to create a unique pattern, use the pattern stamp to create a pattern overlay, and scale a pattern to any size.

Patterns are a fun, quick way to dress up the background of your design. Plus, there are a plethora of free and paid patterns online that you can quickly download and use.