Pull User Information and Signature from Staff Profile when using PDF-Editor

With multiple users commenting on PDFs in PDF-editor, it would be more useful to show who made the comments. Currently, it always shows it as "Guest" no matter who make comments/annotates etc.

It would also be more efficient to load and have the user's e-Signature from the staff profile ready in PDF-editor for faster execution of documents. Currently, everytime we want to sign, we have to locate the signature and upload it before signing.