Please take a look at the "
How to set up and run Wowza Transcoder AddOn for live streaming" forum article in the template configuration part, the "Decode settings" section. In the
Video/Overlays/Overlay/[Elements]. paragraph, you have an example on how to add an overlay image. In the screen capture shown, you can see an "Image Placement" tab which you can click and set the position of your overlay image.