Secure pdf file

Marvin Reid4y ago

You can generate a secure PDF by following the below tutorial. To capture when the PDF file is open however, you'll likely want to look at the actions and scripts supported by PDFs themselves before proceeding with a possible option.

https://www.leadtools.com/help/sdk/tutorials/dotnet-core-encrypt-pdf-files.html

https://helpx.adobe.com/acrobat/using/applying-actions-scripts-pdfs.html

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Faisal Ansari6y ago

Dear Mr. Alice yang,

thank you very much for your reply, but the link you have mentioned for solution is not being opened i tried many times. could you please suggest any other ??

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alice yang6y ago

Check this:

https://www.e-iceblue.com/Tutorials/Spire.PDF/Spire.PDF-Program-Guide/Security/C-Encrypt-and-Decrypt-PDF-file.html

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