To edit page headers and footers go to Settings > Click "Edit Header & Footer"
We recommend using a table to control the layout and alignment of content in your header/footer. This allows you to control the vertical and horizontal alignment of your content.
You can add variables to headers and footers the same way as the template body.
To add page numbers, you will first need to add an HTML element to the header or footer then add
<span class="pageNumber"></span> for the current page number or
<span class="totalPages"></span> for the total number of pages.