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How to Lock A PDF File

How to lock a PDF file with password? This article gives you a satisfying answer by guiding you through the whole process of locking a PDF file.

Margarete Cotty
Published: Jul 15,2015 17:00 pm / Updated: Jul 27,2015 15:27 pm

Are you looking for a way to lock PDF files? In this case, you might be interested in how to lock a PDF file with 2 simple steps. Just download Wondershare PDF Editor to follow the steps below to learn how to lock a PDF file in 2 steps. Wondershare PDF Editor is a professional PDF tool that allows users to add password to lock a PDF, edit, convert and create PDF files.


Step 1: Download and install Wondershare PDF Editor

Click the download link to download Wonddershare PDF Editor installation package. Double-click the .exe file to install it on your computer. After the installation, launch it. Now Wondershare PDF Editor for Mac is available for users to add password to protect PDF documents on Mac as well. If you have a Mac, you should download the Mac version.

Download PDF Editor Trial Version!

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Step 2: Lock a PDF file

Click the OPEN button to open the PDF that you’re going to lock on Wondershare PDF Editor. And then click the Security tab to reveal the Password Encryption option. Click the lock on the very left side to enable the Password Security dialogue box.

lock PDF files

On the Password Security dialogue box, you have 2 choices to lock a PDF

  • Add open password to lock the PDF. After you add the Open Password, people who get the PDF cannot open the PDF unless they have the right password.
  • Add permissions to lock the PDF files. By doing this, people will be able to read this PDF only or have limited access to the PDF: printing or changes (including inserting, deleting, extracting pages, commenting and signing).

lock a PDF

You can do more on PDF Editor

  • Edit PDF text, images and graphics
  • Split large PDF into small ones
  • Merge several PDF files into a single PDF
  • Add text and image watermark to PDF
  • Insert, delete, extract PDF pages

Learn more>>

Download PDF Editor Trial Version!

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Margarete Cotty
Margarete Cotty
PDF Forms & Protection Expert
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