To add alt text to images in PowerPoint, or edit an image's existing alt text, select the photo and choose "Edit Alt Text." ...

You can make a picture transparent in your PowerPoint slides so that you can add text over it or use it as a background.

PowerPoint doesn't offer a built-in setting for transparent text, but that doesn't mean it can't be done. And you might be surprised just how easy it is to achieve.

How to Make a Picture Spin on an Axis in PowerPoint. Adding images to your Microsoft PowerPoint 2010 presentations keeps your audience focused and helps people better understand the presentation.

Though there's no built-in fire animation for text in PowerPoint, you can use clip art to simulate the effect. Microsoft Office PowerPoint supports the use of animated picture files in the GIF ...