Background image for footer element in document designer

Summary:

We need to add a background image to the footer element using Document Designer. Is it possible to achieve this through any out-of-the-box or custom solution? We've attempted to address this by placing an image element containing a screenshot of the footer content layered with the desired background. However, this approach has resulted in pixelation and the overall visual quality is poor. Can you suggest any alternative solutions that would produce a more enhanced outcome?