Generate Certificate

I need a self-signed digital ID to sign expense reports this week. Create a certificate tied to my [name] and [email] that I can use to apply a visible digital signature to PDFs before [deadline=Friday].

Our team distrusts unsigned PDFs. Create a self-signed digital ID for me that includes my full [name] and company [email], set an appropriate expiry, and give me brief instructions on how to sign documents visibly and verify the signature on other machines. Explain any limitations of self-signed IDs versus certificates from a CA.

We need to sign internal approvals and I can generate a self-signed digital ID, but IT warns these won’t validate externally. I’m unclear on expiry, key length, and whether to bind the certificate to my work email. Advise whether a self-signed ID is appropriate for internal approvals, recommend secure creation settings (expiry, key strength), explain how recipients will see and validate the signature, and when we should pursue a CA-issued certificate instead to avoid validation warnings for external partners.