Use the Photoshop Pen Tool or the Freeform Pen Tool to draw vector lines in Photoshop. Straight Lines. Launch Photoshop and create a new document by pressing "Ctrl-N" on the keyboard.

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.

The Pen tool in Adobe Photoshop can be tricky to master but is used to create precision curves. These curves can be used as part of a larger shape or to cut out elements from an existing image.