AntonioM Posted October 15, 2021 Share Posted October 15, 2021 Hello I need to implement a process to add a digital signature to an existing PDF. The user must be able to select a local certificate (in client machine) and the app must sign the pdf file with this certificate. Thanks in advance Antonio Torregrosa 1 Link to comment Share on other sites More sharing options...
Sherzod Posted October 15, 2021 Share Posted October 15, 2021 Hello, I think you should find (or develop) and install a browser plugin that specializes in this. And additionally use JS libraries that work with cryptography. Link to comment Share on other sites More sharing options...
Tokay Posted October 15, 2021 Share Posted October 15, 2021 You can use the Gnostice PDF engine or other library for this feature: https://www.gnostice.com/nl_article.asp?id=268&t=Generating_Digitally_Signed_PDF_Documents_In_Delphi Link to comment Share on other sites More sharing options...
AntonioM Posted October 15, 2021 Author Share Posted October 15, 2021 8 hours ago, Sherzod said: Hello, I think you should find (or develop) and install a browser plugin that specializes in this. And additionally use JS libraries that work with cryptography. Many web apps allow the user to select a digital certificate and to do some operations, even signing documents. I need to do it without installing anything in client side. I'll keep searching. Regards Link to comment Share on other sites More sharing options...
Sherzod Posted October 16, 2021 Share Posted October 16, 2021 4 hours ago, AntonioM said: Many web apps allow the user to select a digital certificate and to do some operations, even signing documents. For example? Link to comment Share on other sites More sharing options...
AntonioM Posted October 16, 2021 Author Share Posted October 16, 2021 7 hours ago, Sherzod said: For example? In my college, in public administration,... Link to comment Share on other sites More sharing options...
araujoadanr Posted December 10, 2021 Share Posted December 10, 2021 Lastversion of fastreport if your PDF is generate from fastreport. https://www.fast-report.com/en/blog/show/pdf-digital-signature/ Link to comment Share on other sites More sharing options...
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