How can I add password to PDF for protection from Windows 11?

Microsoft Print to PDF, a virtual printing feature that comes with Windows 10/11, which allows users to convert any printable file (e.g. Word, Excel, web page) to PDF and can add password to PDF. It is suitable for users who don't want to install additional software and just need to simply encrypt PDF.

Part 1: Open PDF files and print files

1. Right-click on the PDF file and select “Open Method” → “Microsoft Edge”.
2. Press the keyboard Ctrl + P or click on the upper right corner of the browser menu “Print” option
3. In the “Printer” option, click the drop-down menu, select “Microsoft Print to PDF”.
Be careful not to select the actual printer on your computer!
4. Make sure that the page size, orientation and other settings are correct usually the default can be

Part 2: Enable PDF encryption options

1. Click the “Print” button, the system will pop-up “Save As” window.
2. At the bottom of the window, click “Options” (some versions may be displayed as “more settings”).
3. Check the “Encrypt PDF files” if this option is not available, the Windows version may not support encryption!
4. Click “OK” to return to the “Save As” window.

Part 3: Add Password to PDF
1. In the pop-up "Set Password" window, enter the PDF password you want.
2. Confirm the password click "OK" to complete the password settings.
(It is recommended to use 8-16 bit complex password, including upper and lower case letters, numbers and special characters).

Part 4: Save the encrypted PDF
Enter the file name and click "Save" Windows begins to password protect PDF file. It only takes a few seconds to complete the task.