However, it is possible to add LTV information at a later date by following the steps below (note that your application must also be configured as shown above to enable LTV): For example, Acrobat cannot retrieve the necessary time stamp and revocation information without a network connection or if an OCSP query fails. There are several reasons why an existing signature might not be LTV enabled. Go to top Enable LTV for an Existing Signature Signatures created with the application should now include the information necessary for long-term validation. The time stamp server you added should now have a star displayed to the left.Ĭlose the Server Settings dialog box and the application preferences. With the new time server selected, click Set Default. Select Time Stamp Servers in the left-hand menu, then click the button labeled +, with an icon of a computer.Įnter a Name and URL for a time stamp server, then click the OK button.With the Signatures preferences still open, click the More button, under Document Timestamping. Now we will configure the time stamp server. Make sure the check-box labeled Include signature’s revocation status is checked, then click the OK button to close the dialog box. LTV requires that signatures are time stamped and include all necessary revocation information. Configure Signature Preferences and Time Stamp ServerĬonfigure Signature Preferences and Time Stamp Server.