Note: Change Brush Size in Photoshop Wacom Tablets Not Working If you drag left, the brush size decreases while dragging right increases the size. In Photoshop for Windows, hold down ALT + Right click + Drag Horizontally.

On a Mac, you change the size of the brush by holding Option + Right Clicking (Mouse/Pen)+ Dragging the mouse Horizontally (left or right). I find that using the mouse button or a Wacom Intuos pen button is the fastest way to adjust the size of the brush tool in Photoshop.

Method 1: Use the Mouse to Change the Brush Size I will explain four different methods starting with my favorite approach. Get 12 Free Photoshop Actions for Photographers My Favorite Methods for How to Change Brush Size in PhotoshopĪs usual in Photoshop there are several ways to accomplish the same thing. So knowing the quickest way to change the brush size can save you a lot of work, and a sore arm from trying to use a brush with the wrong settings. When working with the brush in Photoshop, you often need to change the brush size to either work faster or more precisely.

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