How to set password in any PDF for free?

Step 1: First you click this link(https://smallpdf.com/protect-pdf).

Step 2: Then you can choose pdf in which you have to enter a password.

Step 3: Then you set your password which you want to put in pdf.

Step 4: After set password then,It will take some time to set your password .

Step 5: Then you can download your password protected pdf.

                                

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