Simultaneous affixing of signature by several signatories

Hello, i just to ask if there is a way to make the pdf file a live document so the signatories can affix their respective signatures in the document simultaneously to save time? What I am currently doing is, a certain document has several signatories, once Signatory A affixed his/her signature in the document, i route the pdf file to the Signatory B, once signed, I will route again to Signatory C and the process goes on. I am hoping if there is a way to simplify this process?

Thanks in advance for your reply!