beamer background

A Beamer wallpaper is the perfect way to highlight the content of a page. The image used for the background should have a size that matches the dimensions of the rest of the document. The dimensions must be centered. For example, an exemplary image has an aspect ratio of 4:3. It can be placed at a certain distance from the top or right margin. For best results, specify a distance of at least three inches from the top or left corner.