>>Erase from the printed result? Or from what? Is this watermark functional for the customer or just some copy protection for you?
Context = people running an advanced report, then lifting the graphs for unattributed inclusion in presentations touting their own capabilities. I have no problem with that except that reasonably I'd like some credit for creating the resource underlying the promoted service.
"... They ne'er cared for us
yet: suffer us to famish, and their store-houses
crammed with grain; make edicts for usury, to
support usurers; repeal daily any wholesome act
established against the rich, and provide more
piercing statutes daily, to chain up and restrain
the poor. If the wars eat us not up, they will; and
there's all the love they bear us."
-- Shakespeare: Coriolanus, Act 1, scene 1