Not entire verification information stored with digItal signature?

New Here ,
Feb 12, 2021

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I am using Reader DC to add digital signatures to PDFs. I have activated the option that verification information is added to the PDF at the time point of signing. However, when I chose Add verification information from the menu linked to the signature on the left of the application, the PDF still further increases in size. My understanding is that the option and the manual function do the same. Am I wrong? 

How can I check if all verification information has been added to a signature to assure long term validity? 

I'm also using external timestamps.

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Security digital signatures and esignatures

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Adobe Employee ,
Feb 16, 2021

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Hi @thorstent58086077 

You can check all the Verification Information by going to Show Signature properties in LHP -> Show Signers Certificate -> Details Tab

 

Screenshot (35).pngScreenshot (36).pngScreenshot (37).png

 

Regards,

Abhinav Sethi

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thorstent58086077 AUTHOR LATEST
New Here ,
Feb 21, 2021

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I think my problem is a different one or I misunderstood your answer.

 

My Reader is configured to use the CAdES equivalent signature format and to include verification information when saving a signed document. 

When I create a new signature the extended signature properties dialog says it is "PAdES Level B-T" (note that I have German Reader so translation may vary slightly). Shouldn't it be immediately Level "B-LT", because the verification information was said to be added to the PDF? 

SignatureProp.PNG

 Now if I reopen the same signed document and select add validation information from the signature menu and save the document again:

Menu.PNG

  it becomes "B-LT".

SignaturePropBLT.PNG

 Why isn't the signature immediately level B-LT after its initial creation?

Thanks for your support! 

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