Tools/raw materials PPT software method/step 1. First open a blank PPT, right-click in the blank area of ??the document and select "Background".

2. In the pop-up background dialogue window, there is a drop-down arrow, you can choose your favorite color, and if you use your favorite picture, choose the fill effect.

3. Select a picture in the pop-up dialog window, find the picture you want to use as the background, and click "OK".

4. Return to the background dialogue window and select "Apply All", "Apply" or "Preview".

5. The application is completed and the picture you set is set as the PPT background.