Number counting per print?

Hi

Im using Libreoffice Writer

Im printing 500 copies of a document, and i need a number counter in the bottom.
This counter should add 1 for each time the document is printed.
How can i do this?

This is a bit of a hack. You can create a calc document with a series of numbers 1 - 500 using Edit > Fill > Series
Then add a form letter field in your document that takes numbers from this document