The header and footer will always take the full width of your page, you can only configure its height
These are the recommended dimensions of the header and footer.
| 100px height | 200px height | |
| Portrait | 612x100 | 1224x200 |
| Landscape | 792x100 | 1548x200 |
Here is a sample PSD file to create your own header and footer in portrait

Anatomy of a report
Header: The first part of the report, shown on top. May contain your school's logo or address

Footer: The last part of the report. Can contain your school's certifications or a signature line for parents / students confirmation.
In case of adding a signature line, you should consider enabling the option 'On last page only'

Background: A background image, which could either be a texture, plain color or an image.
Content: This is the actual report's data. Choose your position and size so that it doesn't overlap with your header or footer.