Rounded Corners Tool
This is the easiest way to make rounded corners in Photoshop CC, because you’ll actually be starting out with them, rather than manipulating an existing image. Take note, this is actually a new feature in Photoshop CC, so you’ll need the latest version in order to do it. This method is best used if you’re create a picture from scratch, such as a logo, a splash image, or a button.
Step 1 – Create a new Photoshop file
First, go to File > New > and create a new Photoshop file with the desired measurements for your image. It doesn’t matter what size, resolution, or color mode your image is in, as these elements are unrelated to the rounded corners feature that comes with Photoshop CC.
Step 2 – Place a shape using the Rectangle Tool
In Photoshop CC, the Rectangle Tool should be grouped in the same section as the Pen Tool, the Horizontal Type Tool, and the Path Selection Tool in the sidebar. You can also select it by pressing its hotkey, U.
Once selected, you have two options. You can either drag the image out onto the canvas and edit its properties after, or set its size first, and then click anywhere on your canvas to place it. In this example, we’ll tinker with the image properties before we place our shape. Options for the Rectangle Tool should be accessible at the top.
You can set the image fill to any color you like, and set the stroke width to any size you’d like. In this example, we’ve set it to zero. Our image width and height is 300 px, a square. Next, we click anywhere on our canvas to place it.
Step 3 – Round those corners!
This next step is made super easy by Photoshop CC’s built-in corner rounding feature. After you’ve OK’d the rectangle placement, the Live Shape Properties box should appear, allowing you to see changes to the shape as you make them.
The option to adjust corners is the portion at the bottom. Just enter in a value, and watch those sharp edges go smooth! The smaller the value, the less rounded the corners will be. This example depicts what a rounded corner at 50px looks like. The closer the value gets to half the size of the length or width (150 in this example, because our square is 300×300), the more circular the shape becomes, so don’t get too carried away.
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