We're unable to change to position of the PAID stamp on invoices, eglshop.

I think this would be a great option though. Feel free to visit on our Feedback page, and join the thread about this. You can open this link:  https://feedback.qbo.intuit.com/forums/168199-quickbooks-online-feature-requests/suggestions/3265278....

The Community team is always here if you have other questions.