Learn how to insert a watermark in Microsoft PowerPoint presentations. You can add a Draft text or an image watermark using the Slide Master.

You can add a picture in PowerPoint on your PC or Mac device from an iOS mobile device with the help of Microsoft Office 365 apps. Learn how.

To add alt text to images in PowerPoint, or edit an image's existing alt text, select the photo and choose "Edit Alt Text…" from the Picture Format toolbar. When you add an image to PowerPoint ...