Sending important documents? Learn how to password protect PDFs for extra security using easy steps with Adobe Acrobat and free online tools.

“Is there any way to password-protect and lock a sensitive PDF file before sending it as an attachment through email? I cannot afford Adobe Acrobat Pro and free primopdf didn’t work for me ...

Do you share PDF files with other people? Here's how to password protect a PDF on Windows for protection against unauthorized access, editing, and printing.