How to encrypt PDF with digital certificate on the Internet?

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Easy way to encrypt PDF with digital certificate

I want to encrypt a PDF file with a digital certificate. There is an easy way to do it, please open this website pdf-encrypt .
First, select the PDF file. example file :


Choose PDF encryption as digital certificate encryption(VIP need).

Click the upload button at the bottom to start uploading, and wait for a while to process it.

After processing, click the link above the button to save the file!





Result file: 


Is it very simple?

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