Code signing certificates are digital certificates that will help protect users from downloading compromised files or applications. When a file or application signed by a developer is modified or compromised after publication, a popup browser warning will appear to let users know that the origin of the file or application cannot be verified.
Document signing certificates allow you to add a digital signature to a document to prove the identity of the sender. This signature ensures you that the document hasn’t been altered, and that you can trust its contents. Unlike an e-signature, a digital signature is virtually impossible to forge. You’ll be able to sign documents in top programs, including Microsoft Office®, Adobe® Acrobat and Adobe Reader, LibreOffice®, and OpenOffice®.