Customizing a Template - What are the specs for the cover page?

Interested in designing your own cover page? Here are the specs!

• Dimensions of a full 4:3 page with no margins: 1484.63px by 1049.02px
• File Type: Web browser-supported images, such as .gif, .jpg, or .png.
• File Size: 8MB max; although smaller is better (so it does not impact the overall file size of the pdf)