Adobe 22002486 Digital Signature User Guide - Page 115
Troubleshooting a Signature or Document Status
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Acrobat 9 Family of Products Security Feature User Guide Validating Signatures Troubleshooting a Signature or Document Status 115 7.5 Troubleshooting a Signature or Document Status Note: In enterprise settings, a system administrator may have configured your application to behave differently than described below. Ideally, signature validation should result in the display of a green check icon for approval signatures or a blue ribbon icon for certification signatures. Icons always appear in the Document Message Bar, the Signature Pane, and in the Signature Properties dialog. In addition to the signature and document status icons and text, key tools for troubleshooting signatures include the following: Signatures pane: Displays all of the signatures, status, change history, and links to signed versions. Signature Properties dialog: The dialog provides five tabs that display signature information and buttons for performing document validation tasks. It also provides a Show Certificate button for invoking the Certificate Viewer. Certificate Viewer: The viewer provides certificate-specific information and buttons for performing certificate validation tasks. Together, the Signature Properties dialog and Certificate Viewer should provide you with enough information to either successfully validate a signature or reject the document as insecure. 7.5.1 Troubleshooting an Identity Problem If the signature status or overall document status indicates that there is a problem with verifying the authenticity of the signer, you may need to verify the signer and/or decide whether to trust that signer. Note: Trust does not happen automatically. For a signature to be trusted, your application must be configured for that trust. That configuration could be the result of actions by Adobe, your administrator, or you. To troubleshoot authenticity problems, open the signature panel and expand the information for the problematic signature. Read what it says the problem is, and then take one or more of the following actions: 1. If the status is unknown (displays a magnifying glass) and the icon shows a magnifying glass, it is possible signature validation did not occur. Validate the signature(s) as described in "Validating Signatures Manually" on page 106. Verify you have an internet connection and the application is configured properly. Since the problem may not be with your application, try again later. 2. If the status is problematic (displays a warning triangle), do the following: Verify the signer is in your trusted identity list and that you have configured their certificate or one of their certificate's issuing certificates as a trust anchor. Verify you have trusted the signer's certificate for signing and (if necessary) certifying. The Certificate Viewer's Trust tab indicates the certificates trust level (right click on a Signature, choose