Choose File > Protect Using Password, and then choose Advanced Password Protection from More Options. If you receive a prompt, click Yes to change the security. Select Restrict Editing And Printing Of The Document .

Step 2: Click the Add Files button in the upper-left corner, and double-click the PDF document you want to password protect. Step 3: Your PDF will then automatically appear in the list of files.

Password Protect PDF Files in Windows and macOS Method 1: Use Microsoft Office to Create Password Protected PDFs. When you encrypt and password protect a document you created using a Microsoft ...