PDF encryption is useful for protecting sensitive information from unauthorized access. However, it can become inconvenient when you need to edit, print, copy, or otherwise use a document that is protected by a password or security restriction. This is common with bank statements, payslips, tax documents, business reports, contracts, and other confidential files.

If you are wondering how to unlock an encrypted PDF, the right method depends on the type of protection applied to the file. In this guide, we will explain different ways to unlock encrypted PDF without data loss or formatting issues. 

What Does an Encrypted PDF Mean?

An encrypted PDF is a document protected using security settings that control access to its content or specific actions. Depending on how the PDF was secured, you may need a password to open the file or may be restricted from printing, editing, copying, commenting, or extracting pages.

There are two common types of PDF passwords:

• Open Password: This password is required to open and view the PDF.
• Permission Password: This controls actions such as editing, printing, copying, commenting, and page extraction.

Therefore, an encrypted PDF does not always mean that the file cannot be opened. Sometimes the PDF opens normally but prevents you from performing certain actions.

Can You Unlock Encrypted PDF?

Yes, an encrypted PDF can often be unlocked when you have the necessary password or authorization to remove its security settings. However, the appropriate method depends on the type of protection.

For example, if you know the password, you can use a PDF application to remove the security. If the PDF opens but has printing or editing restrictions, a PDF restriction remover may be sufficient. If you have forgotten an unknown opening password, you generally need a password recovery approach rather than a simple PDF unlocker.

Always make sure you have permission to access and modify the document before attempting to remove its protection.

How to Unlock an Encrypted PDF – 4 Methods

Method 1: Unlock an Encrypted PDF Using Adobe Acrobat

Adobe Acrobat can be used to remove PDF security when you have the required password and the document's security settings allow it.

Steps to unlock the PDF:

1. Open the encrypted PDF in Adobe Acrobat.
2. Enter the password if prompted.
3. Open Document Properties.
4. Select the Security tab.
5. Check the security method applied to the PDF.
6. Change the security setting to No Security, if available.
7. Enter the required password.
8. Save the PDF as a new file.

The resulting PDF may no longer require the previous security settings.

Limitations: Adobe Acrobat may require a paid plan for certain security-related functions. In addition, this method is not suitable when you do not know the required password.

Method 2: Unlock an Encrypted PDF Using Google Chrome

Google Chrome can provide a workaround when a PDF can be opened and printed but has certain restrictions. You can use the browser's print function to create another PDF.

Steps:

1. Open the protected PDF in Google Chrome.
2. Enter the password if required.
3. Click the Print option.
4. Select Save as PDF as the destination.
5. Choose a location for the new file.
6. Click Save.
7. Open the newly created PDF and check whether the required restrictions have been removed.

This approach can be useful for simple documents where you only need a usable copy.

Limitations: Print-to-PDF does not work when printing is restricted. It can also affect document properties such as bookmarks, forms, metadata, links, annotations, or other interactive elements. Therefore, it may not be appropriate when you need to preserve the original PDF structure.

Method 3: Unlock an Encrypted PDF Online

Online PDF tools can be convenient when you need to process a non-sensitive document without installing desktop software. Most services require you to upload the PDF and then process it on their servers.

General steps:

1. Open a reputable online PDF service.
2. Upload the encrypted PDF.
3. Enter the password if requested.
4. Start the unlocking process.
5. Wait for the file to be processed.
6. Download the unlocked PDF.

This method can be convenient for occasional users.

Limitations of online PDF services:

• The document must be uploaded to a third-party service.
• Confidential files may present privacy concerns.
• File-size or usage limits may apply.
• Some features may require payment.
• Different services support different PDF security configurations.

Avoid uploading sensitive documents such as bank statements, identity documents, tax records, payslips, or confidential business files to an unfamiliar website.

Method 4: Unlock an Encrypted PDF Using Automated Software

SysTools PDF Unlocker Software is designed to remove PDF restrictions related to actions such as printing, copying, editing, commenting, and page extraction. It processes files locally rather than requiring you to upload them to an online server. 

Using this automated tool, you can remove different types of encryptions, such as AES 128 and 256-bit in batch mode. Moreover, this is an all-in-one solution to unlock all modes of protection from PDF files with ease. Now, follow the stepwise guide to remove encryption from PDF securely.

1. Download above mentioned automated software on your machine. 
2. "Add Files or Folders" to upload the encrypted PDF files. 
3. Navigate to password and enter it > click on Save and then, Change. 
4. Finally, hit the Unlock button to bypass the encryption protection. 

Final Words

In the above guide, we have explained 4 ways on how to unlock encrypted PDF document. Among all the techniques, SysTools mentioned software is secure and highly recommended to all. With this, you can bypass all permissions and encnryption protection with ease.