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How to Validate Digital Signature in Adobe Reader

In today’s world digitally signed documents are quite popular and easy to circulate. We often received this type of PDF documents from online or other sources. After open the document we may notice that the signature which has been signed digitally is showing validity unknown. We can solve this issue very easily by following the procedure as below.
Right click on the actual signature and choose ‘Show Signature Properties

Validity Unknown
On the Signer Info tab, click on ‘Show Signer’s Certificate’
Signature certificate
Verify that there is a certification path named end with CA‘.
Digital Signature
Mark the certification path and click the ‘Trust’-tab and then ‘Add to Trusted Identities‘.
Click ‘OK’ to any security question that comes on next screen
Digital Signature
Check the field for ‘Use this certificate as a trusted root‘ and click ‘OK’ twice to close this and the next window.
Click ‘Validate Signature‘ to execute the validation.
Digital Signature
Once a signature is validated against a trusted certificate, it will show a green tick mark on it.

1 comments:

  1. Nice idea. I do also wanted to know the same point and is searching for it from past many days. In this article you have given a complete idea about it. Thanks buddy.
    digital signature Adobe Reader

    ReplyDelete

 
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