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If file size is an issue, you may want it to compress your media clips so that your PowerPoint File doesn't take up as much disk space. I'm going to go to slide 4 and click on my Media Clip. I'll go back up to my Playback tab and I'll click on my Trim Video button. This video clip has extra footage at the beginning and end that we trimmed out in an earlier movie in this course. Compressing your video and audio files will delete extraneous image or sound data, removing the beginnings and endings of media that you trimmed and cropped.
This does result in lower quality images and videos. So only perform these next steps if your file really is too large. I'll click Cancel. First, save a copy of your presentation so you can always go back to the original. This will also give you two copies of the file: a high resolution version to play on your own computer and a smaller version for sharing. I'll go up to the File tab in the upper left-hand corner and down to the second option, Save As. At the end of my file name, I'll add an _2, and press Save.
Now, go back to the File tab and this time make sure you're on Info. At the top is Media size and Performance and it tells me that my file size is 3.5 megabytes, and that I have one media clip with trimmed regions. Click on the big Compress Media button. You have three levels of compression to choose from. Presentation Quality will save space, but maintain your original quality or at least close. Internet Quality is good for streaming over the web. You should only use Low Quality when you are really having space issues or if you need a super small version of your file, for instance, to send over email.
For this presentation, I'm going to go ahead and choose Internet Quality, a medium level of compression. This choice is great if your playback will happen into a smaller size instead of full screen. After I click by Quality, the Compress Media dialogue box opens and I can actually watch as each asset is compressed. I can see a progress bar and the final result for how much file size I saved. Sometimes the savings will be insignificant, but some media clips may get much smaller. Look, I saved 1.2 MB. That can definitely help me squeeze my files on to a flash drive, save upload time, or avoid maximum file size constraints. I'll click Close.
Now notice that my Info pane now has no info. I can see my new file size of 2.2MB and also reminds me that I can undo the compression if my results are unsatisfactory. Click back on the Compress Media button and you can see that you have an option here to undo. Now here's one troubleshooting tip. If you get a message that one of the videos is unsupported, check its physical dimensions. To take advantage of compression, some file types insist that both the Width and the Height needs to be divisible by 4.
If your movie has been resized, adjust it again so that both dimensions can be divided by 4 and you should be fine. Now it's also worth noting that some QuickTime files also are not eligible for compression. Let's take a look at our results. I'll go back to Home Ribbon, click on my video, go back to the Playback tab, and then check Trim video again. I can see that my original extraneous beginning and ending material is now gone. I'll click Cancel. When I play this slide, and then play my video.
(Female speaker: Hansel and Petal for years has been providing me the most amazing, beautiful floral arrangements.) I can see that my image is a little grainy, but depending on your needs, an exchange in quality for reduced file size may be a trade-off that you're perfectly willing to make.
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