Logo Utrecht University


Target audience: Staff

Adobe install DUO certificate

  • Step 1

    Open a file which should contain a certificate from DUO.
    The blue bar at the top of the file warns about a not validated certificate.

    Click on Signature Panel on the right side.

  • Step 2

    Right click the certificate that is shown on the left side.

  • Step 3

    Click Show Signature Properties.

  • Step 4

    Click on Show Signer’s Certificate….

  • Step 5

    Open the tab Trust.

  • Step 6

    Click Add to Trusted Certificates….

  • Step 7

    Click OK.

  • Step 8

    Tick the box Use this certificate as a trusted root and click OK.

  • Step 9

    The DUO.nl certificate should now be installed in Acrobat Reader.

Last modified: 22/01/2020

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