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How To Unlock Restricted PDF Files In Some Easy Steps

Anuraag Singh | Modified: 2019-12-10T09:10:22+00:00| PDF | 4 Minutes Reading

PDF Files stands for Portable document format. Adobe developed it to use it as an exchange format for documents. PDF documents are those which are easily accessible. These files can be opened anywhere, in any system no matter whether it is Windows, Mac, etc. Sometimes these files may contain restrictions due to security purposes. But, if you want a solution to unlock restricted PDF files by using automated software easily then go through this blog.

2 Types of Secured PDF Documents

1. Documents with User-level Security – In user-level security, the user needs to enter the “document open password” to view the content of the PDF files.

2. Documents with Owner level security – In owner level security, the file becomes restricted to read, edit, copy and print the content.

PDF files may contain some restrictions because many users all over the world use this file format to keep their data safe and protected. So, this is the reason people add security to PDF files. Everyone wants to keep their files safe and secure. So, if you want to unlock restricted PDF files then, use the methods which are given below & easily unlock secured PDF documents.

Manually Remove Restrictions from PDF Documents

You can unlock strongly encrypted PDF files using Adobe Acrobat Pro Utility. Just follow these simple steps:

Step 1 – Download and Install

The very first step is to download and install the latest paid version of the Adobe Acrobat Software. If you only have Adobe Acrobat reader then you can’t unlock restricted PDF files.

Step 2 – Open File

After that, you have to click on the “File” button. Now the drop-down window will appear.

Step 3 – Double-Check

Now, click on the Open button & then you need to do a double click on the PDF file which you want to unlock.

Step 4 – Provide Password

You need to enter the password after performing the above step. Also, after entering the correct password click on the “OK” button.

Step 5 – Padlock Icon

Click on the padlock icon. Security settings will be opened when you will click on the padlock icon choose the “Permission Details” option.

Step 6 – Security Method

After selecting “permission details”, click the “Security Method” box. Now, you will see a drop-down option with “password security”.

Step 7 – Password Security

After performing the above steps, now you have to select “No Security” option.

Step 8 – Unlock PDF

The last step is that now you have to type your Permission Password again and then click on the “OK” button to unlock restricted PDF files.

NOTE:- Manual method has some drawbacks it is highly expensive as the user needs to purchase the latest version of the Adobe Acrobat software. It will not unlock strongly encrypted PDF files if the user doesn’t have a Permission Password. Therefore, after considering all these limitations we will suggest you to use the automated software which is given below to remove restrictions from PDF files.

Automated Software to Unlock Restricted PDF Files

You can use this automated software to remove PDF file security without password. Just follow these simple steps & start the process:


Step 1 – The very first step is to download and install the software. After doing this, go to “start”, then “all programs” and then select PDF Unlocker Tool. After this click on the “Unlock” button so that you can proceed further.

Step 2 – Now, you have to insert the PDF file by clicking the “Browse” button.

Step 3 – After this, view the security settings of the selected PDF.

Step 4 – Click on the “Browse” button present at the right side & choose the destination location of your choice.

Step 5 – Click on the “Unlock PDF” button to unlock restricted PDF files. After performing this step, all the security settings will be removed. just go to the destination location and open the PDF File.

NOTE:- Users can unlock secured PDF files without permission passwords by using this Tool.

Key Features Of Automated Software

  • Supports to work with Windows and Mac both OS.
  • Enable PDF permissions like a copy, edit, print, comment, etc.
  • Removes restrictions from Owner level password security.


In this blog, I have discussed how to unlock restricted PDF files. We have discussed the manual solution to remove restrictions from PDF documents but it is having some limitations. Therefore, to overcome those drawbacks we would recommend you to use professional software.

Also Read: How to Open Password Protected PDF Document Without Password