I need to add watermark for a client. The problem is, that pdf reports are divided into header/footer in one file and body in another, and this watermark need to be rendered on all page layout, not just body, or header/footer and all pages, not the first one. Can anyone help me with this problem? I'm sending an example of how it should be rendered in link bellow.

https://ibb.co/j5bGMwP

PDF report is standard A4 paper format.