Shorten a Videos Length by Trimming in QuickTime for Mac OS X

QuickTime is usually thought of as a movie viewing app, but it also has a few simple editing features that are extremely easy to use, and that don’t require the launching of a more complete video editing suite like iMovie. We’ll focus on the Trim function of QuickTime here, which lets you lets you shorten the total length of the movie clip by trimming it down to a shorter length. This is perfect for eliminating needless parts of a video, whether it’s a long intro, end credits, or some otherwise unnecessary piece of a video clip.
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