This is version 2.18 of the AWS Elemental Server documentation. This is the latest version. For prior versions, see the *Previous Versions* section of [AWS Elemental Conductor File and AWS Elemental Server Documentation](https://docs.aws.amazon.com/elemental-server/).

# Overlay File Requirements
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Set up the image files that you want to insert over your video as follows:
+ **File type**: Use files with the extension `.png `or `.tga`.
+ **Aspect ratio**: Use any aspect ratio; the aspect ratio of the overlay file doesn't need to match the aspect ratio of the underlying video.
+ **Size in pixels**: Use any size. If the overlaid graphic is larger than the output video frame, the service crops the graphic at the edge of the frame.
**Note**  
In jobs that scale the video resolution, whether your overlay scales with your video depends on where you specify the graphic overlay. For more information, see [Sizing Your Overlay to Account for Scaling](about-overlay-scaling.md).