I used the compositor to add blur effects but they are not showing up in my final render image? I followed a blender tutorial and made the Earth. I have a sun in the background that I added some blur effects to in the compositor. When I rendered my image, the blur effects on the sun don't show up. How do I render the final image from the compositor? Are there settings that I am missing? Here is a screenshot of the composited image above the rendered image.
Make sure you are sending the final image to a Composite node. The Viewer node only displays in the backdrop of the node editor.