How do I grant file attachment rights to a certified PDF document?

I am using Acrobat Pro XI Version 11.0.18 running under Windows 10.

I have a PDF document with a button and a MouseUp action that creates a data object (via doc.createDataObject). The action works fine until I certify the document. With a certified document, I get the following error message:

NotAllowedError: Security settings prevent access to this property or method.

Doc.createDataObject:673:AcroForm:Button1:Annot1:MouseUp:Action1

According to the documentation for createDataObject (column 4: Availability for this function is ‘D’) the document “requires file attachment rights”. How do I grant file attachment rights to a PDF document that is certified? - john