Forgot PDF Password? How to Open and What to Do?

  Kanishka Vohra
Written By Kanishka Vohra
Anuraag Singh
Approved By Anuraag Singh
Modified On September 4th, 2025
Reading Time 13 Min Read

In the digital sphere, PDFs are becoming the cornerstone document format, providing the utmost convenience and support for handling a wide range of information. Unfortunately, the issue of “forgot PDF password” occurs here due to poor management of security credentials. Forgetting the password triggers frustration and prevents the accessibility of data. Read this guide to learn quick ways to unlock and recover the correct document password. Plus, we will provide the techniques to remove PDF restrictions and security to access or open your PDFs for free.

Here, we will share what to do if you lost PDF password. Additionally, you will discover the best way to unlock your document for improved accessibility, eliminating the need to manage complex PDF credentials or passwords. Now, let’s begin the discussion.

What are the Common Types of PDF Document Passwords?

PDF security is mainly utilized to protect confidential data like financial reports, business contracts, legal policies, personal records, etc of an organization. It prevents unauthorized access and protects against data loss, tampering, and breach. Moreover, there are two types of PDF document passwords, take a look below:

  • Document Owner Passwords: The owner or permission password is applied to restrict actions like editing, modifying, copying, extracting pages, and adding annotations. The purpose of such protection is to ensure document integrity and originality of data during the distribution of information. Hence, the owner’s password controls the actions of viewers over the document.
  • Document User Password: The document access password is commonly known as user password protection. These types of PDFs require legitimate password credentials to open or access the information. In the absence of a password, the document remains unreadable or inaccessible. Moreover, this password protection is mostly used for securing highly sensitive information like financial statements, secret documents, and more.

Overall, the importance of both PDF password protection depends on the situation and seriousness of the data. However, these advanced security measures become hurdles due to the chances of forgetting the PDF password. Now, let’s understand the immediate methods to take when you lost your password.

What to Do If I Forgot PDF Password?

The situation of “forgot PDF document password” is frustrating and stressful, especially when you need to access the data. Here are the crucial steps to follow when you forgot document open password PDF:

  • Check for Original Document: If you lose the document credential, immediately check for the original PDF, it might not be password protected. In this way, you can access the document without any security or challenges.
  • Contact Document Owner: In case, you forget the PDF credentials, contact the document creator to regain access. And, once you get the passkey, use a strongly encrypted PDF password remover to open the document without any protection.
  • Try Common Combination of Password: Ensure recalling the common or previous user password to open the document. Additionally, check out the password manager where you organize the security credentials.

Overall, taking these steps helps you to recover your forgotten PDF password. Additionally, we recommend that you contact the document creator directly and ask for the legitimate passkey for accessing the document. Now, if these methods won’t work, look for advanced techniques when you forgot PDF document password.

Challenges When PDF Password Forgot

The situation when you want to unlock PDF without password brings hindrance. Moreover, if you forgot the pattern, combination, and phrases, the task becomes more complex and difficult to crack. Here are the common challenges you might address:

  • Once you forget the passkey, it automatically revokes the document’s accessibility. In other words, you can’t view or access the PDF for free.
  • For business workers and professionals, the case of a lost PDF password causes stress and delays in workflow. Hence, viewers always seek a path for restoring the passwords.
  • Lastly, there chance for losing accessibility permanently. This means that users can’t access the crucial content of the document.

Follow the Video Tutorial on What to Do If PDF Forgot Password

Forgot PDF Password: How to Open the PDF Using Best Ways

Issues like “forgot my PDF password” prevent you from accessing your crucial documents. Additionally, it adds inconvenience when you need to open or make necessary changes within the document. Here are the methods to try if you forgot Adobe PDF password:

1. Online PDF Password Recovery Tools
2. Brute Force Method to Crack Password
3. Use an Advanced Python Script to Recover the Password

Now, let’s understand these techniques in a detailed manner.

#1 How to Recover Lost PDF Password Using Online PDF Services

Free online tools like LostMyPass are popularly known for recovering the forgotten Adobe PDF password. These software are based on a friendly web-based interface and are handy for both professional and novice users. Using this tool, you can recover the open document password mainly known as the user PDF password.

In other words, this software effectively works for unlocking the weak and strong password of the PDF document, allowing you to open the PDF with ease. Here are the steps to recover the forgot PDF password using the free online PDF password recovery tools:

  1. Visit the online PDF services, and open it.
  2. Add Files” feature to upload the PDF file.
  3. Now, confirm to unlock the PDF.
  4. Lastly, wait till the document gets unprotected.

Sounds easy! Unfortunately, the process takes time as bypassing password protection is a daunting task. Additionally, online PDF password recovering solutions like LostMyPass hold grave risk to document compromise and privacy. Moreover, these tools might create copies of your confidential data. Hence, the possibilities of data exposure and misuse remain prominent. Here are the other drawbacks of these tools.

Please Note: Online PDF services like LostMyPass depend on techniques like dictionary and brute force attacks; these methods take time and might not be successful if the document is protected with strong encryption. In other words, there is no guarantee of recovering the passkey using these tools. Additionally, these services come with limited freeware features so, you need to take the premium plans for more advanced features.

#2 Forgot PDF Password – Try Brute Force Method to Crack Password

The brute force method is yet another way to crack or recover a complex PDF password. In simple words, it is a systematic process where users attempt all the combinations of characters until the correct passkey is found. Moreover, this technique takes time up to hours or even days depending on the complexity of the password. Here are the two types of brute force attacks that are used when you forgot document open password PDF, take a look below:

1. Pure Brute Force: In this technique, users try all the characters and their combinations without adequate knowledge of password format or structure.

2. Dictionary Attack: In this attack, users have a pre-built list of words, characters, and combinations of phrases that help them to crack or bypass the PDF password protection.

In summary, the brute force method is effective when you have a password structure. However, these methods aren’t feasible and time-consuming, largely depending on the complexity of the password. Moreover, users need to invest time until found the correct passkey to access the document.

Limitations of Brute Force Attack: Using the brute force attack is against the data protection law or standards. Here, unlocking the document without legitimate owner permissions may violate legal policies like copyright and intellectual property rights. Additionally, bypassing the document protection is also considered an offensive crime under the law.

#3 Forgot PDF Document Password – Use Python Script to Recover Password

If you’ve forgotten the PDF password, you can use the advanced Python script to recover the password. Moreover, Python holds various libraries to manage or automate the process of password recovery with security. Here is the Python script to use when facing issues like “forgot my PDF password”:

  1. Install the Python library, such as PyPDF2, which effectively works with PDFs when attempting to recover the password. This script is designed to unlock the protected document using the list of passwords.
  2. Once you have installed pip install PyPDF2, you need to input the document and try functions like unlock_pdf or brute_force_unlock to recover the PDF password.
  3. If the script has generated the possible passkey, you can use it to open your protected PDF document.

Similar to the brute force method, the Python script is time-consuming and eats up your efforts, leaving you with frustration. Moreover, if you forgot owner password PDF Mac or Windows, using the Python technique you need to invest an enormous amount of time just to find the possible character. Here are the other drawbacks of this method.

Please Note: The success rate of cracking the forgotten password using the Python script is nearly impossible. For both professionals and beginners, trying the complex script might increase the chances of data loss and impact document integrity. Additionally, the attempt to break the document password without legitimate permission leads to a violation of laws and it is completely unethical.

Overall, these are the best ways if you forgot PDF password how to open your document. By implementing these methods, if you have the legitimate passkey then, use the advanced tool to remove security from PDF file. Now, move down to discover the method.

Forgot PDF Password Unlock Document With Expert Tool

If you lost PDF password then, there is no way to access the document in the absence of authorized permissions. Previously, we have explained all the methods to crack the password and get access. Now, if you want to unlock and unprotect your document, use the SysTools PDF Unlocker tool, it is one of the most highly recommended and powerful software solutions to remove the protection from your PDF. This robust tool is developed for Windows or Mac OS and effectively deals with both user and owner password security.

Using this software, you can easily remove security like passwords and other restrictions including editing, content copying, and printing. In this way, you can get complete access to the document. Here is the step-by-step guide to open the document without a passkey:

  1. Run the SysTools PDF Pro software.
  2. Add Files” or “Add Folders” to browse files.
    tab on add files option to upload pdfs
  3. Under Password > enter the correct passkey.
    select on password to add correct passkey
  4. Save” and “Change” feature to save the unprotected file.
  5. Lastly, press the “Unlock” icon to remove the security.

In this way, you can access the PDF for free. Moreover, it allows you to manage the PDF with ease, ensuring the distribution and accessibility of the data.

How to Avoid the Chances of “Forgot My Password”?

The issue of lost PDF password is common due to poor handling of the security passkey. Here, it brings misfortune to the professionals, causing delay, frustration, and more. To avoid these situations, you need to manage document passwords properly. Below are the keynotes to remember to solve the problem of “lost my password”:

  • Try Password Manager: The chances of forgot the PDF password are high. Here, you need handy tools like 1Password to store or manage the effortlessly crucial passwords under one roof.
  • Make a Strong Password, But Easy to Remember: Ensure that you create passwords that are easy to remember. This way, you can recall the passkey without using any password recovery software.
  • Always Keep Backup: Taking a backup copy helps save you from situations like forgot PDF password. Also, you can keep the hints of the passkey to prevent the chances of loss.

Forgot PDF Password in Mobile Phone – How to Open It?

Many of you search for what to do when forgot PDF document password in mobile​ or other Android or iPhone devices. Here, you want to recover PDF password to open the document instantly. But remember, if you forgot the patterns and other details, recalling the PDF security password can be impossible.

Here are the fastest ways to recover the lost PDF password in mobile phone including Android or iPhone:

1) Look for Password Manager in Mobile Phone:

a) For Android users: Check the Google Password Manager and tools like 1Password. Review the password management and recall the passkey behaviour or patterns.

b) For iPhone Users: Use iCloud Keychain from Settings. It helps you to find the combinations without any data loss.

2) Ask Directly from Owners: If you don’t remember, you can ask the owners to get the idea of the document passkey. This way, you can easily access the PDF on mobile phones.

3) Use the Online PDF Password Recovery Tools: It is the best way to access the lost PDF passkey. This technique would take time, and the success rate isn’t high. However, users can take a risk if nothing works to recover the PDF protection password.

Concluding Words

In this guide, we have shared the best techniques to follow if you have forgot PDF password, allowing you to crack your document. Using these methods, you can easily bypass the document password without impacting file integrity. Additionally, ensure using the above techniques while addressing the consequences of these methods. Lastly, if you need to remove the protection permanently, use the SysTools solution to remove all the security without any data loss.

FAQs on “Forgot PDF Password” – How to Recover It

Q. How to recover if “lost PDF password”?
If you forgot the PDF password, instantly use password recovery tools. LostMyPass is a popular website for recovering lost passwords. This way, you can unlock and regain access to the PDF document. In other words, this tool provides the combination and even the correct passkey of the PDF file. After getting the password, here are the steps to unprotect the PDF document:

  1. Use the SysTools recommended software on your PC or machine.
  2. Tap “Add Files or Folders” to discover and add the PDF files.
  3. Use the Password tab, manually type the recovered document password.
  4. Now, click “Change” to set the location for output or unprotected PDF.
  5. Finally, tab Unlock function icon for saving the unprotected PDF.

Q. How to manage my PDF document password?
You can use password management tools or applications to manage and avoid the chances of lost passwords. This way, you can organize and share the existing passwords without stress.

  author

By Kanishka Vohra

A Technical Analyst specializing in PDF technologies, data management and workflow optimization. I am passionate about addressing real-time technical queries and challenges, providing clear and practical solutions that help professionals manage data securely, streamline operations, and adopt the right tools for efficiency.