Google Docs lets you add headers and footers to your documents and automatically insert elements like page numbers, page count and footnotes.

Sure, Google Docs lets you add headers and footers to documents, but within those headers and footers you can't include dynamic information like page numbers.

How to Add Email Footers. An email footer displays commonly used information such as your business's contact details or logo. Attaching a signature or "sig," as footers are commonly called, to ...