Multiple Digital Signatures (SelfCert) in an Excel Project
 

I have a couple of apps in Excel that one other person needs access to. I
only thought of this after I removed my digital signature and inserted hers
in. Can I resign the files and still retain her signature? I don't want to
risk her not being able to run these files.

TIA.
--
I am running on Office 2007, unless otherwise stated.