Step 1: Open the file in Photoshop

Step 2: Drag the design file from your computer folder

Step 3: Drop the design file onto the Photoshop window and press Enter to place the file.

Step 4: Move the design layer to the bottom

Step 5: Select the design layer, go to Edit > Transform > Scale to rotate, scale and adjust the design onto the design template. Make sure to fill the canvas completely.

Step 6: Hide the top layer and save the design in the JPEG format