How to add Slash before and after the signature

When we are creating the PDF template, is it possible to add slash before and after {{Sig_es_:signer1:signature}}, so once the signer complete the signature, it can be displayed as below
/My Name/

Background: This is the requirement from USPTO for the e-signature.
https://tmep.uspto.gov/RDMS/TMEP/current#/current/TMEP-600d1e1619.html