Step 1: Media Browser
If you’ve already finalised your project, your video will be added to the Media Browser automatically. If not, you can add it through the Share menu.
Step 2: Size it up
When exporting to a location with a range of size options, you can hover over the information sign at the end of each row for more details about each.
Step 3: YouTube details
When uploading your videos to online services like YouTube you’ll need to add details into this dialog such as a category and search tags, separated by commas.
Step 4: Size matters
Choose a size that fits your specifications – 720p will work perfectly on both iOS and other devices, but if you want the highest-quality setting, go with 1080p.
Step 5: Standard export
You can export your movie as a file on your Mac too. This will enable you to share it with others via CDs or memory sticks, rather than publishing it online.