How does ps make a poster with light box effect? Let's take a look at the detailed tutorial. 1, open the ps software, press and hold the arrow keys on the keyboard, and press and hold the alt key to avoid the sawtooth phenomenon when the mouse moves to a certain position. 2. Hold down the alt key, move the mouse to the corresponding position and press the key to avoid being blocked. 3. Hold down the ctrl key, and after the mouse pointer becomes a path, put the cursor in an appropriate position. 4. The cursor is in this position. Put the cursor in a suitable position, the mouse will become an arrow, and there is a cursor above the keyboard that can be swiped. 5. Select the graph to be added, hold down the ctrl key, and put the mouse in the appropriate position. 6. Select the text and graphics to add, and then press the key to avoid being blocked. 7. Press and hold the alt key, the mouse pointer will turn into an arrow, and the key will avoid being blocked. 8. Using the text tool, click the bottom of the menu. If there is a problem below, you can only double-click the menu. 9. When it opens, click the text.