Qualified timestamps

Qualified timestamps validate that a document was created before a certain date and hasn’t been modified since that date.

How to use timestamp signatures

To add a timestamp signature to a PDF file, do the following:

  1. Open the PDF file that you want to timestamp in Adobe Acrobat Reader.

  2. Select Menu button  Preferences.

  3. Select Security from the list of Preferences Categories and click More.

  4. Select Time Stamp Servers.

  5. Click New.

    The New Time Stamp Server window opens.

  6. Enter the name and URL for the server and click OK.

    For the time-stamping service compliant with eIDAS, use the following time-stamping server URL: http://timestamp.sectigo.com/qualified.