I'm trying to secure PDF with certificates. I've created self-signed user certificate in our domain which has auto-enrolled to users and certificates have been saved to active directory. I've configured directory server and I can search for users in our domain and set their permissions in Adobe Acrobat but when I save the document and reopen it all recipients are shown as "unknown" in "Select recipients" window, except our domain root certificate and my certificate. Sometimes this happens immeadiately after saving, when opening document next time, but sometimes recipient list shows correctly after reopening document and those recipients can actually open protected document, but it changes later to show users as "unknown" and then they cant open document anymore. What am I doing wrong?
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