Signature Properties dialog box provides basic information about the signature, including the signer, reason, date, location validity summary and details of certificate, etc.
1. Select the Hand command.
2. Right-click the signature field, or right-click the signature in the Digital Signatures panel and choose Show Signature Properties from context menu.
3. In Signature Properties dialog box, you can get the information as follows:
- Signed by – shows the signers that sign the document.
- Reason – displays the reason that you create the signature.
- Date – shows the date time when you signed the document.
- Location - shows which page the signature is located on.
- Validity Summary - checks whether the document was modified after it was signed, and other information.
- Show Certificate – Click it to open the Certificate Viewer dialog box. Click Show Certificate in the Certificate Viewer dialog box to view the details of the signature certificate (such as the validity of certificate and certificate path) and add the certificate to the Trusted Certificates list. See also Add a trusted digital certificate to the Trust Certificates list.
- Advanced Properties – Click it to open the Advanced Signature Properties dialog box where you can view the details about the signature and the embedded time stamp (if any). For the time stamp, you can click Show Certificate… in the Advanced Signature Properties dialog box to add the time stamp server to the Trusted Certificates list. See also Add a trusted digital certificate to the Trust Certificates list.
Note: If the status is unknown, click Show Certificate… in the Signature Properties dialog box > Show Certificate in the Certificate Viewer dialog box to view the details of the certificate. Check whether the certificate has been included in your list of trusted identities. If your certificate is not trusted, click Install Certificate to install it to the trusted Windows Certificate Store. If you use a self-signed digital ID, confirm that the certificate details are valid. If the certificate isn’t valid, a valid certificate from signer is requested.