How to make a creative video poster in PS? How to design a poster image in PS 1. Open the PS software. 2. Create a new blank canvas. 3. Select the rectangle. 4. Create a width of 2000 pixels. 5. Draw a size of 1000 pixels and fill the edges with yellow. 6. Use the pen tool to draw the shapes on the left and right sides. 7. The final effect is as shown in the figure.