Share Email Facebook Twitter LinkedIn DIGITALSIGN (Command) Attaches a digital signature to a drawing, which is removed if an unauthorized change is made. If a valid digital ID is available on your system, the Attach Digital Signatures dialog box is displayed. Related Concepts About Digital Signatures For DrawingsAbout Digital Signatures for Executable FilesAbout Adding Time Stamps to Digital Signatures Related Reference Digital Signatures Dialog BoxCommands for Protecting and Signing Drawings