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I have a project and I need help... The idea is a web application that allows users to sign a pdf located on server via a jar file (which is also on server) that take a pdf and PKCS#12 file (.p12 or .pfx) and generate a digitally signed PDF.

  1. How is it possible to make the signing process take place on clientside using the .jar file ??
  2. Or how can I recieve the user's PKCS#12 file and use it on server to allow user to sign the pdf without saving it on server (serverside)??

any helpful Ideas or recommandations!

Wael_al
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    @KJ *"generally you can only sign on behalf of somebody else, if you are a valid certified notoriety"* - beware, that depends on your respective legislation. There are legislations in which it suffices if there is a contract between you and that somebody else. – mkl Jan 15 '22 at 23:21
  • Refer to answer [sign-pdf-with-plain-javascript](https://stackoverflow.com/a/55676351/9659885) for client side signing. Server just needs to send hash of the document to client browser. – Bharat Vasant Jan 17 '22 at 06:52

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