How to password protect a PDF in Adobe Acrobat Reader and shield your sensitive data

To password protect a PDF in Adobe Acrobat Reader, you'll need the paid Pro version, which starts at $14.99 a month.
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Abobe Acrobat Pro Too Expensive? Here's How I Password Protect PDFs (For Free)

Don't let your sensitive data fall into the wrong hands. These tools encrypt important PDFs without the need to spend hundreds of dollars on the full Adobe Acrobat program. At some point you’ll likely ...

How to password protect a folder in Windows 10, to keep your files safe from prying eyes

You can password protect a folder in Windows 10 using a program called WinRar, which is free to download and use.