1. Open Photoshop and open the document with the layer you want to duplicate.
2. Select the layer you want to duplicate in the Layers panel on the right-hand side of the screen.
3. Right-click on the layer and select “Duplicate Layer” from the context menu. Alternatively, you can also go to the “Layer” menu at the top of the screen, select “Duplicate Layer” and click on it.
4. In the Duplicate Layer dialog box, give the new layer a name if you want to change it, and choose the destination for the new layer from the “Document” drop-down menu.
5. Click “OK” to create the duplicate layer.