How can I use a picture as a background in PowerPoint?

To use a picture as a background in PowerPoint, follow these steps:

1. Open PowerPoint and go to the slide where you want to add the picture background.
2. Click on the “Design” tab at the top of the screen.
3. In the “Customize” group, click on the “Format Background” option.
4. A sidebar will appear on the right side of the screen. In the “Fill” section, select the “Picture or texture fill” option.
5. Click on the “File” button and choose the picture you want to use as the background.
6. Adjust the picture settings, such as transparency and tiling, to your preference.
7. Click “Apply to All” if you want the picture background to be applied to all slides, or “Apply” if you only want it on the current slide.

Now you have successfully used a picture as a background in PowerPoint.