A family of Microsoft presentation graphics products that offer tools for creating presentations and adding graphic effects like multimedia objects and special effects with text.
You do not need to buy a separate product key just to add speaker notes. However, if you are using the desktop PowerPoint app, it must already be activated with a valid Office license or Microsoft 365 subscription.
To add notes:
- Open the presentation in Normal view.
- Select Notes at the bottom of the PowerPoint window.
- Enter your notes in the box below each slide.
- Open the Slide Show tab and enable Use Presenter View.
- Connect a second display or projector, then start the presentation.
Your notes should appear on your screen while the audience sees only the slides.
If you are using PowerPoint for the web, you can add speaker notes, but you currently need the desktop version of PowerPoint to see them while presenting.
I hope my answer helps. Have a nice day