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Digital Signing PKI-Government Certificate in Adobe

Follow these steps to digitally sign a PDF file with your PKI-Government personal/professional certificate in Adobe Acrobat.

Steps
  1. Open the PDF file
    Start Adobe Acrobat and open the PDF file you want to sign.
  2. Go to Tools
    Click on Tools (menu) and view more.
  3. Select Certificates
    Click on Certificates to access the signing options
  4. Choose Digital Signing
    Go back to the PDF file and click on Digital Signing. You will be asked to select the signing area.
  5. Sign the Signing Field
    Click and drag your mouse over the area where you want to place the digital signature.
  6. Choose the Certificate
    A pop-up window will display three certificates with your name. Select the correct personal certificate to sign.
  7. Set Trust (First Use)
    When signing for the first time, you must mark the certificate as “trusted”:
    - Click Trust and then Add.
    - If you do not do this, Adobe may display a message stating that the signature is invalid. You can correct this by clicking on the signature and trusting the certificate.
  8. Click Sign
    Confirm your signature by clicking Sign. Then enter your PIN to place the signature. You can choose to lock the document after signing.
  9. Check the validity
    After placing the signature, you can click on it to check whether the signature is valid.

Your document has now been successfully digitally signed.