Use a higher resolution background image in an animation render

Question

I have a image which has full HD resolution (1920x1080) and I want to use it as background for my animation without decreasing the resolution. My animation is in HD resolution (1280x720). The background is added using compositing with nodes. When I render the animation Blender cuts of the edges of my background image so that it fits the animation resolution.

Is there a way to keep the resolution of the background image but render the animation with another resolution and still have the whole background image in the final animation?

Answer 1

Add a Scale node ("Distort -> Scale") to your background image. Then set the space to "Render Size". Then select "Fit".