Timestamping documents


A timestamp serves as a digital proof of authenticity. Similarly to digital signatures, these server-generated timestamps are used to verify the authenticity of a document by recording the exact date and time an event occurred. Because of the server connection needed to establish the validity of a timestamp, it is substantially more secure than a regular digital signature and is frequently used by governments, financial institutions, and corporations worldwide.

Adding timestamps


To add a timestamp, you need to connect to a server first. Here is how to add your first timestamp server connection from the “Server Settings” panel.

  1. Click on “Time Stamp”.

    PDF Extra: accessing the timestamp tool

  2. Click on “New” to add a timestamp server.

    PDF Extra: adding a timestamp server

  3. Provide the name and URL of the timestamp server you want to connect to.

    PDF Extra: setting up a timestamp server

    NOTE: Depending on how the timestamp server is set up, you may need to also provide a username and password before you can connect to it.

  4. With the server added, select it and click on “Continue”.

    PDF Extra: selecting a timestamp server

  5. Choose where to save a timestamped version of your original document.

  6. Your document has been timestamped!

TIP: If your timestamp is not validated automatically, you can verify it the same way as you would a digital signature.


Please note that once added, a timestamp CANNOT be deleted!

PDF Extra: grayed out timestamp delete option