How to overlay .png on live video for motional camera.

Create the graphic with a transparent background. If necessary, isolate the graphic content by creating a mask. You might find this easier to accomplish in a graphics program — e.g., Paint Shop Pro, Photoshop, etc., — than in your video editor.

I have also created transparent overlays from business cards using chroma key, keying out the white background — i.e., making it transparent — leaving the artwork visible. This is a handy way to capture a client’s fancy logo artwork without having to re-create it.

You can use a transparent overlay with any underlying content.