The simplest way to edit text in images you're using in PowerPoint is simply to overlay text on or near the image. To do this, click the "Insert" tab in the menu and then, in the Text area, click ...

Open the Microsoft PowerPoint presentation file that contains the text you want to include in a Microsoft Word document. Click the "Outline" tab in the upper left, above the slide thumbnails column.

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

Also, if you have not selected a background color, image, gradient, or pattern yet, deselect the text, right-click on the background (note that the task pane changes to Format Background), and ...

A Crayon effect will make your image look like a wax drawing. Learn how to create a Crayon text effect in PowerPoint the easy way.

For instance, an upcoming feature for Office apps like Microsoft Word and PowerPoint will automatically suggest image and slide deck captions, called alt-text, using AI algorithms.