Get Signed data and timestamp token

[Alexander Jimenez]

Hi Syncfusion,

How can I get the signed data and timestamp token from signed PDF document?

Regards,

Alex.

[Gowthamraj Kumar]

Hi Alexander,

Thank you for contacting Syncfusion support.

 

We do not have support to get signed data and TimeStamp token from existing signed PDF document. If your requirement want to validate the signature, we can validate all the digital signature present in the PDF document. Please refer the below links for more information,  

 

UG: https://help.syncfusion.com/file-formats/pdf/working-with-digitalsignature 

KB: https://www.syncfusion.com/kb/10777/how-to-validate-digitally-signed-pdf-document-using-c-and-vb-net 

Blogs: https://www.syncfusion.com/blogs/post/create-validate-pdf-digital-signatures-csharp.aspx 

 

While signing the PDF document from external signature, we get the signed data from the signature. Please refer the below link, 

External Signing: https://www.syncfusion.com/kb/10762/digitally-sign-pdf-document-with-an-external-signature-using-c-and-vb-net
UG: https://help.syncfusion.com/file-formats/pdf/working-with-digitalsignature#externally-sing-a-pdf-document 

 

If it is not your actual requirement, we request you to share the exact requirement with us to analyse on this and provide you better solution.
  

Regards, 

Gowthamraj K