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While my slideshow has a nice 3D gradient for background, it might look really nice to have a dynamic background of flowers behind my content. PowerPoint gives you the ability to use a media clip as the background on the slide. Here's how to make it happen. First, decide if you want the media clip to be on the background of just one slide or if you want it to appear on all your slides. If you want it to appear everywhere, go up to the View tab and choose Slide Master on the left-hand side. Click on the top Slide Master so that this change cascades down to all of your slide masters.
Go to the Insert Ribbon and insert your video. We'll insert a video from file and we'll choose our background Lilies. For detailed information on inserting videos, please see that chapter earlier on this course. If you're going to use a video behind other text or images, it's best to choose a movie that doesn't have a focal point. In other words, some sort of landscape or broad view is better than a clip that contains specific subject matter like people or objects. It should also be consistently dark or light so that you can easily find a text color with good contrast.
Once my video is embedded, drag the corner so that the video covers the entire slide. Notice that because we want the image to stay proportional, sections of the clip will overlap the edges of the slide. This is fine because we're only going to actually see the parts over the slide itself, another reason that background videos shouldn't have focal objects. Now go up to the Video Tools Playback tab and on the right, change the Start to Automatically, then put a check in the box in front of Loop until stopped. I'll also set my volume to Mute so that if my video has any sound, it won't compete with my slideshow content.
For more information about these techniques, please see the Applying video effects chapter of this course. Now, go up to the Video Tools Format tab and on the right side in the Arrange group, find the Send Backward button. Use the dropdown arrow and click on Send to Back. Now your video clip moves to the back layer and all the placeholders on the slides reappear. Because you now have a moving picture behind your text, legibility becomes a concern. If your video is dark, consider making your text white or a coordinated light color.
Most text will appear fine over it but I find that Word Art comes in handy to increase contrast and improve readability. Do a Ctrl+A keyboard command to select all of the objects on your slide, then hold down the Shift key and click on this edge of the background to deselect the background. Now, go up to the Drawing tools tab and click on Format. On the right side of the Word Art styles group, click on the more button and come down to this green, glossy word art. Now, go back up to the Text Fill dropdown and fill with it black.
Now, it has extra contrast against my video background. Do check all your other slide masters that you haven't used to make sure the new style cascaded down to all slides. If it didn't, reapply those same color settings. Now go back to your Slide Master tab and close your Master View. Now play your slideshow and now you have a video background on every slide. When you click to advance your slideshow, click on a placeholder.
If you're having trouble clicking and clicking start and stops your video instead, either click somewhere else on the slide or use your down arrow to advance the slides. Depending on your computer, having a perpetual movie and animating your text may tax your processor. You may see jumping animation or pixilation in the background. If that happens, you'll need to apply a text animation that doesn't use up so much memory and resources.
But using a simple video as a background on your slides can create a dynamic slideshow, sure to get the viewer's attention.
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