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Learn How to Unlock Password Protected PDF Files

Author: Barry Scholfield
by Barry Scholfield
Posted: Oct 12, 2017

The PDF file is created by Adobe Acrobat has occupied the highest position amongst several document formats as it offers many advantages that are not offered by any other format. It has become the open standard for the exchange of information over the internet. One of the efficient formats that can easily send in an email as attachments without compromising PDF formatting. Apart from all this, the most prominent feature of PDF files is the security. It allows users to secure their PDF from unauthorized access or restrict access to the PDF. A user can set any type of restriction like printing, modifying, copying, etc. After setting a password to protect PDF file, it might happen that a user may forget the password. In such type of situations, users look for the solution of how to unlock password protected PDF files. Therefore, considering the requirement of users, both manual and professional solution to remove password from PDF document are discussed.

Different Types of Passwords on Adobe PDF Files

There are basically two type of password protections offered by the Adobe PDF files for security reason and are discussed below:

User Level Password:

It is a type of password that is mainly used to restrict the opening of a PDF document unless an appropriate password is entered to unlock the PDF. After entering the correct password of PDF file, a user can easily unlock it without any other restriction.

Owner Level Password:

It is a type of password that restricts other users from performing some of the operation on a PDF file unless and until the correct password is applied. For example, printing, editing, deleting, copying, etc., the content of PDF file. In such type of protection, a user can open the PDF but cannot perform any operation like copying on it. To remove such type of restrictions from PDF, a user first need to delete password from PDF files.

Different Methods to Unlock Password Protected PDF

Before starting the process to erase password from PDF and removing the restriction, a user must have a password of PDF file. However, if a user loses the password, then it becomes impossible to open PDF. It is because no manual method or third-party tool will help in recovering the lost password. So, it is suggested to delete password from PDF file and remove all type of restriction from it. To do the same, two free methods exist and both of them are discussed below:

Erase Password From PDF Using Google Drive

In order to unlock password protected PDF, upload the file to Google Drive. As a user upload the locked PDF, all its content is copied as a text file in the Google Drive account. After that, a user can save that unlocked file at any desired location on the local machine.

Limitations: There are some drawbacks that a user might face while using it. It does not preserve the original formatting of the PDF document. Apart from this, there is a PDF file size limitation also in Google Drive i.e., 2 GB. Moreover, this method is suitable only for Owner level secured PDF file.

Automated Solution to Unlock Password Protected PDF

As discussed above there are some limitations of Google drive method. Therefore, to overcome all such limitations, a user is advised to move to a third-party tool. A PDF Unlocker tool is one such utility that erase password from PDF file and removes all type of restriction from it. The tool is not only free of cost but efficient and reliable also. After using this tool, it becomes easy for the user to perform any desired operation on the PDF file to print, copy, edit, etc. Using this tool, if the PDF file gets unlocked once, it will not be prompted again for the password.

Advantages of PDF Unlocker Tool

There are various advantages of using free PDF Unlocker and all of them are discussed below:

  • Remove all type of restriction from PDF file like Copying/ Editing/ Printing

  • Does not compromise the integrity and original formatting of the data

  • Adobe Acrobat installation is not mandatory to unlock protected PDF

  • Supports PDF unlocking from owner level password security

  • Provides an option to save the unlocked PDF file at any desired location

  • The tool is compatible with all versions of Microsoft Windows OS.


  • Secured PDF files are always really important for the users as it contains the data that cannot be changed or accessed by anyone else. But, it becomes a serious issue if a user is not able to unlock the PDF file. Therefore, such type of user’s requirement, we have discussed two free methods of how to unlock password protected PDF files. As the manual methods have some limitations, so a user is advised to use a free third-party tool suggested above.

About the Author

As an Author of FreeViewer Blog, Barry Scholfield has experience of more than 5 years and he is now working as a product review expert & technical writer.

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  • kayleegavin  -  3 years ago

    Try ToolsGround PDF Unlock Tool

Author: Barry Scholfield

Barry Scholfield

Member since: Jan 30, 2017
Published articles: 10

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