Creating a composition from footage
If you are using video you already shot as the base for your clip, select “Composition from Footage.”
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Select your footage, make sure “Create Composition” is selected, and click “Open.”
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After Effects will create a new composition that matches the footage you selected.
Saving a project
When you save your After Effects work, you need to save two different files: your project file and your rendered movie.
Project file
Your project file is the set of instructions for creating a clip. It does not include any media you used to create a clip (video, images, sounds).
To save your project file, go to File/Save:
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Give your project a proper name, make sure you are saving to the location where you want it saved, and select “Save.”
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Saving your rendered movie
A rendered file is your completed final clip. Effects on it cannot be edited.
Go to File/Add to Render Queue:
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The Render Queue window will open. Select where it says Not yet specified to pick a location to save.
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Choose a location and a meaningful file name, then select Save.
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Last, select the Render button to render your clip.
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