How to remove service copyright text from PrintTask or Export web map task output?

[YaserIrfan]

How to remove service copyright text from PrintTask or Export web map task output?
I have found a way to do that in JavaScript API by using printtemplate.showAttribution = false, but couldn't find it in WPF.
Quick help is greatly appreciated.
Thanks.

[MichaelBranscomb]

Hi,

I would expect this is not possible - typically the data hosted as part of our basemap services require attribution to be shown.

Cheers

Mike