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.

Open the file, enter the password, and re-save it as a new PDF. Whether on Windows, macOS, Android, or iOS, you can unlock ...

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

Enter a password in the appropriate field, depending on which type of protection you chose in Step Seven. Click "File" and click "Save" in the resulting sub-menu to save over your existing PDF file.

“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 ...

Now whenever you print a document you can choose this workflow from the PDF menu and after you supply the password to use, the system will generate the secured PDF document in a new e-mail message.