PDF documents are digitally signed using x509 certificates such as .pfx files with private keys and support for Hardware Security Module (HSM), Online Certificate Status Protocol (OCSP), Certificate Revocation List (CRL), and Windows Certificate Store to offer authenticity and integrity.
Steps to digitally sign a PDF document programmatically:
Take a moment to peruse the , where you can find other options like adding a digital signature using stream, signing an existing document, adding a timestamp in digital signature and features like , extract or , etc., with code examples.
Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer to to learn about generating and registering Syncfusion license key in your application to use the components without trail message.
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