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I have a asp.net web application.

I want; users can digitally sign PDF documents with certificates installed in the client machine. Users have a PIN. They must upload file and enter their unique PIN. If certificate is installed and true signed the document and stored at server.

I dont know any plugin for this. I m not sure about my explanation and i hope you have some ideas about that.

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iTextSharp Library, codeproject.com/Articles/14488/… – Gopesh Sharma Jun 14 at 11:25
Thank u @GopeshSharma i'll search more and try it. If it success i'll share. – CocLn Jun 14 at 11:33
Current iTextSharp itextpdf.com/book/digitalsignatures – mkl Jun 14 at 11:41
@cocln grt, please do share... – Gopesh Sharma Jun 14 at 11:42
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1 Answer

[Disclosure: I work for CoSign]

Yes, we have customers doing what you ask for, with the process mediated by the developers web app (written in ASP.net or other languages). See our CoSign Signature Web Agent sdk.

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