Hello @winnie mutanu ,
Thank you for confirming the information.
If it's about copying from the base documents, then that would depend on the format/nature of the base document itself. If the base document is flattened, then the system will read it as an image, and text won't be selectable. If the base document is computer-readable as text, then that text will be selectable. If it's about the fields our system places for signing, we always burn those as text, so there's no way to block interacting with those on the Completed document.
Let us know if you need further assistance with this.
Best regards,
Nathaly | DocuSign Community Moderator
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