Rulers and guides can help you precisely control the position and size of layers and align them on a larger scale.
Rulers are not displayed by default. You will need to enable rulers in the following ways:
Click on rulers and drag toward the canvas to create a new guide.
Drag the guide to move its position.
To move the guide more precisely, you can use shortcuts. After selecting the guide:
To remove guides from the canvas, you can do any of the following:
When you need to preview your design, you can hide the guides to avoid information interference.
Guides and rulers can be shown/hidden synchronously. The method to show/hide them is the same as for rulers.
After selecting a layer, hold ⌥ Option / Alt and hover over the guide to see the distance between the selected layer and the guide.