Go Over Signature Certificate For Free - Signature Certificate

That's mean your certificate validity cancel by administer. For resign you can contact your administer for that. For a certificate which has not expired, the issuer of that certificate is responsible for maintaining something called a 'revocation list'.

To add a digital signature, open your Microsoft Word document and click where you'd like to add your signature line. From the Word ribbon, select the Insert tab and then click Signature Line in the Text group. A Signature Setup pop-up box appears. Enter your information in the text fields and click OK.

To initiate the revocation process, the holder of the Digital Signature Certificate must submit a revocation request to the respective Certifying Authority (CA). This request should provide valid reasons for revocation, such as compromise, expiration, or voluntary revocation.

It is indeed possible to change your signature, as there is nothing legally binding you to stick to the signature you currently use. It is, however, recommended that you take the time to notify your bank and other important institutions if you plan on changing your signature.

How to edit a digitally signed PDF document as the owner? Open the document that you want to change. Go to ?View? ? ?Digital Signatures?. ... On your left, you should now see a list of all digital signatures contained within your document. Right-click your signature and choose ?Clear Signature?.

2. Adobe: Sign PDFs with a digital signature certificate Open your PDF document. Go to Tools ? Forms and Certificates. Click ?Open?, under ?Certificates? Select ?Digitally Sign? ? Either select a signature or click Configure New Digital ID. When you're done, click Sign ? Apply the signature.

Certificate revocation is the act of invalidating a TLS/SSL before its scheduled expiration date. A certificate should be revoked immediately when its private key shows signs of being compromised. It should also be revoked when the domain for which it was issued is no longer operational.