Adobe Acrobat Reader DC – Use Certificate & Timestamp Server

20. April 2023

User instructions for installing certificates – Signing documents and assigning qualified time stamps – Checking the validity of certificates –

Detailed documentation:…


Verifying the installation of certificates

  1.      Open Preferences, select the Signatures category and open the Identities and Trusted Certificates settings.
  2.      In the new window that appears, look for your own certificate in the list. If it is in the list, close the window, otherwise it still has to be installed.
  3.      In the lower half of the settings for “Validation” in “Windows Integration” select the checkbox to verify signatures with certificates already present in Windows. → Done

Add timestamp server

  1.      Open the settings for “Time stamps for documents” in the preferences under “Signatures” on the right side.
  2.      Open the window for adding a timestamp server, enter a name, specify the server (for GLOBALTRUST: and enter the login data received. → Done

Sign PDF file

  1.      Open PDF file
  2.      In “Tools” select “Certificates” tool
  3.      Select “Sign digitally” in the toolbar at the top of the document
  4.      Follow the Adobe Acrobat instructions. → Done

Check signature

  1.      Open signed PDF file
  2.      Note the blue banner at the top of the image
  3.      Select signature field in document and read signature details. → Done

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