In the window navigate to the "Trust" tab and select "Add to Trusted Certificates".The row should state‘ ‘The University of Texas at Dallas RSA.’ Select the row above the one with a warning sign in the new window.To do that, expand a Signature and then the "Signature Details" section by clicking the arrows adjacent to them. However, you need to validate only one signature to remove this error. You will be able to see all the signatures which are causing the issue.Then, click on the Signatures icon in the left-hand sidebar. Click the Signature Panel button in the banner where the error is.If you are the recipient of a PDF that was signed using a UTD-issued certificate, you will need to "trust" UTD's main certificate (the one all individual UTD certificates are validated against) in Adobe. Commonly, this is because the signer used the UTD-issued certificate they got by following CKCS #180: Digital Certificates. I know my card is plugged in and working for I am currently logged onto DOD site.Ĭontact your system administrator for further assistance.I received a PDF that has a banner at the top saying "At least one signature is invalid." How do I fix this error? ExplanationĪdobe does not recognize the certificate used for one or more of the signatures in the PDF. If your digital ID is on a hardware token, please make sure it is plugged in and the token interface is properly configured. You may also refer to the help article in the link - Digital IDs in Acrobat Let us know if that works for you. Select, A Device Connected to this Computer Next Select the appropriate token card connected to the computer. If the problem still persists, as stated above, you are not able to digitally sign the document, correct You may try the following steps: Go to Edit (Windows), Adobe Acrobat Reader DC (Mac) Preferences Signature Click on More, under Identities and Trust Certificates. Ive bought a new CAC reader to try and eliminate that - uninstalled and downloaded reinstalled Adobe - restarted computer - reset my keychain login to default - cleared out my old expired CAC certs - ensured my computer Adobe trusted all of the certs always.
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