Drawing a patterned line in the Photoshop image editing software is something you can do with little difficulty using a few of the program's tools and functions, regardless of your proficiency.

The basic operation of the Pen Tool involves clicking around the Photoshop canvas to make points appear. These points will be connected by lines and start to create a shape.

If you click, drag, and draw a vector image, as opposed to drawing them by hand with one of the pen tools, you can draw a Custom Shape in mere seconds. You start by selecting the Shapes tool.