We sign documents with a certified id and some users get a valid status while others get problematic. Same type of certifcate KPN Corporate Market CSP Organisatie CA
any idea? Thanks
It looks like some users have the root certificate in their "Trusted Identities"and some don't. You have not indicated which version of Acrobat you are using but in Acrobat XI right-click on signature, select "Show Signature Properties" and click "Show Signer's Certificate" button (in previous Acrobat versions it is the same, just the button is called somewhat different but with the same meaning). In Certificate Viewer dialog look at the left pane which shows certification path. Select the top certificate and click "Trust"tab on the right side. Do that both on installations where you get valid status and not. I bet that where you get Valid status the top certificate in the chain is trusted and where it is Unknown it is not trusted. You can add trust from this dialog directly by clicking "Ädd to Trusted Identities" button.
Thank you, It solved my problem. Kind regards. Natasja