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How to implement Digital signature in .NET to create and validate in PDF file?

Posted on 2009-07-09
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How to implement Digital signature in .NET to create and validate in PDF file? Is there any third party componets required? If possible source code please.
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Question by:sbn004
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There is something called PDFKit.Bit expensive.($ 700)Here is a .net code for that as well
http://www.codeproject.com/KB/showcase/digitalsignatures.aspx
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