Checking the validity of a signature

By default, signatures are validated when you open a PDF. An icon appears in the signature field on the document page to indicate the signature status. Further details about the status appear in the Signatures panel and in the Signature Properties dialog box.

Third-party signature handlers may provide alternate methods of validating signatures. Check the documentation included with your third-party digital ID.

Important: To ensure that signatures are validated when you open a PDF and that all verification details appear with the signature, set your verification preferences in advance (see Set signature verification preferences).
  • The digital signature icon  along with the name of the field in the Signatures panel indicate the presence of an unsigned signature field.

  • The blue ribbon icon  indicates that the PDF is certified