How Do I Reduce the Size of a Video Without Losing Quality in After Effects?

Are you tired of dealing with large video files that take up too much space on your computer or are difficult to share with others? Luckily, there are ways to reduce the size of a video without sacrificing its quality. In this tutorial, we will be discussing how to reduce the size of a video in After Effects without losing any quality.

Step 1: Import Your Video

The first step is to import your video into After Effects. Simply go to File > Import > File and select your video file. Once the file is imported, drag it onto the composition panel.

Step 2: Create a New Composition

Next, create a new composition by going to Composition > New Composition. Set the width and height of your composition based on the final resolution you want for your video. For example, if you want your final output to be 1080p, set the width to 1920 and height to 1080.

Step 3: Adjust Composition Settings

After creating a new composition, adjust its settings by clicking on Composition Settings. In this window, you can adjust various settings such as frame rate, duration, and pixel aspect ratio. Make sure these settings match those of your original video file.

Step 4: Add Your Video File

Now it’s time to add your video file to the new composition. Simply drag and drop your original video file into the composition panel.

Step 5: Compress Your Video

To compress your video without losing any quality, go to Composition > Add to Render Queue. In this window, select Output Module and choose a format that supports high-quality compression such as H.264 or ProRes.


  • H.264 is best for web streaming and sharing online.
  • ProRes is best for professional video editing and production.

Step 6: Adjust Render Settings

After selecting your output module, adjust the render settings by clicking on Output To. Here, you can select the location where you want to save your compressed video file.


  • If you want to further reduce the size of your video, you can adjust the bitrate settings in the Video tab. Lower bitrates will result in smaller file sizes but may also lower the quality of your video.
  • You can also adjust other settings such as frame rate and resolution in this window.

Step 7: Start Rendering

Once you have adjusted all the necessary settings, click on Render to start compressing your video. After Effects will begin rendering your newly compressed video file.

Congratulations! You have successfully reduced the size of your video without losing any quality using After Effects.

In conclusion, reducing the size of a video without losing quality is possible with After Effects. By following these steps, you can easily compress large videos for easier sharing or storage while maintaining high-quality playback.