How to use live video in Keynote on Mac | Apple Support

To add live video to your Keynote presentation on your Mac, start by clicking “Media” in the toolbar and selecting “Live Video” from the menu. Adjust the video by clicking “Live Video” in the Format sidebar, where you can change the source camera, add a mask, or customize the background with options like no fill, a color gradient, or an image. For this example, we’ll add a mask. Drag the video to position it or resize it by dragging the handles. Click “Play” to view your presentation, and your camera will activate, showing live video of you during the presentation.

Summary:
– In Keynote on Mac, add live video by clicking “Media” and selecting “Live Video.”
– Adjust video settings in the Format sidebar, including changing the camera source, adding a mask, or customizing the background.
– Choose from options like no fill, a color gradient, or an image for the background.
– Position and resize the video by dragging it and adjusting the handles.
– Click “Play” to start the presentation; your camera will show live video during the selected slide.