Launch Microsoft PowerPoint, and open the PPTX file for which you want to use a GIF as the background. Select the appropriate slide. Click the "Design" tab, and locate the "Background" section.

Much like Microsoft Office's PowerPoint, Google Slides allows users to make powerpoint presentations, albeit through your Google Account. Not only can you save your presentation on Google Drive ...

Here's how to use the "Format Background" feature to change your PowerPoint slide background. Check out the products mentioned in this article: Microsoft Office (From $149.99 at Best Buy) ...