🚀 go-pugleaf

I just recently installed Reader 8.0 and am trying to digitally sign a document using a *.pvk digital certificate. Help indicates (under the Sign PDF topic):

"Click the signature field, or do one of the following:

Choose Document > Sign > Sign Document.

Click the Sign button on the Tasks toolbar and choose Sign Document or Place Signature"

I have no "Sign Document" menu item appearing under the "Sign" menu item and when I try to activate the "Tasks toolbar", nothing happens although I do note that this toolbar is footnoted as: "Only available when document rights are enabled".

I can't seem to find out how to "enable document rights" if that is the key I need to be able to proceed here. I hope someone can advise how to enable this feature.

Thanks,

Jeff