Is it possible to change the certificate header?'

Hi community members,

I'm testing the functionality to electronically sign documents via Adobe Sign which is integrated with our accounting system (Workday).

Does anyone know if it's possible to change the header text of the certificate?

Currently it displays the following text.

Instead of 'Certified by Adobe Sign, a Document Cloud Solution.....' i want to display the text 'Signed by <user>'.

Any help would be welcome.