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Aspose PDF Digital Signing


I am trying to add a digital certificate in to a PDF file using Aspose PDF. Everything seems to work as expected only one issue I am having. When I am trying to open the certificate in the PDF file, it is showing the "Signature Validity is UNKNOWN".

Is there anyway I can set the validity in code?



Hi Suman,

Thank you for your inquiry. Aspose.Pdf for .NET does provide a feature to add digital signature and verify the validity of the signature as well. Please see the following documentation link for more details and sample code.

Please feel free to contact us for any further assistance.

Best Regards,