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Adobe install DUO certificate
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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.
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Step 2
Right click the certificate that is shown on the left side.
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Step 3
Click Show Signature Properties.
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Step 4
Click on Show Signer’s Certificate….
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Step 5
Open the tab Trust.
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Step 6
Click Add to Trusted Certificates….
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Step 7
Click OK.
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Step 8
Tick the box Use this certificate as a trusted root and click OK.
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Step 9
The DUO.nl certificate should now be installed in Acrobat Reader.
Last modified: 22/01/2020