Hi abhimanyu,
Thank you for this information regarding your environment and your intended use case. My interpretation of your original question and your most recent response is that you’re looking to digitally sign PDFs using the PDFTron WebViewer without any server-side processing (i.e. client-side signing). For digital signatures, we typically recommend that you forward the document to a server to perform the certification, as while this process can technically be done on the client-side, exposing the certificate to browser may introduce security risks.
Regardless, we have quite a bit of documentation & resources regarding implementing Digital Signatures using the Apryse SDK that you might find useful:
Digital Signature Overview
Multiple Digital Signatures on One Document
Different Types of Digital Signatures
Custom Signing with an HSM
Please let me know if you have any specific questions or issues regarding your implementation!
Thank you,
Kaden Rettig
Associate Technical Support Engineer
Apryse Support Team