How to Lock/Unlock a PDF file using Zoopsign PDF Tools


Content Creator, Zoopsign

January 22, 2024

How to Lock/Unlock a PDF file using Zoopsign PDF Tools

Lock a PDF file

Although there are as many different reasons to lock a PDF file as there are for creating it, there are fundamentally just two: to restrict access to the document or to restrict document modification. This is crucial if your company emails contracts that you don't want changed or secret papers. What you want to lock and why you need to secure a PDF will determine how you lock it. A PDF can be locked to limit who can open it, print it, and copy it. You can even limit who can send it to.

A PDF lock is a mechanism for preventing access to information that has been encrypted with the PDF format, such as locking a PDF with a password or registration code.

Some PDF security measures are implemented with hardware, often a "dongle" that is a requirement for the PDF to open. Contrary to some recent "opinions," the dongle is still in use, and US law prohibits their removal until each individual one is determined to be obsolete.

To prevent anyone from processing the PDF without the proper key, PDF protection must use encryption. Despite the fact that there are various levels of security, the most basic one allows you to password-protect your PDF.

Steps to Lock a PDF file using Zoopsign Lock PDF tool:

  • Go to our Lock PDF tool.
  • Upload the file from your computer, Google Drive, or Dropbox, or use the Drag and Drop option and click on next.
  • Set the password and press the lock button.
  • Your PDF is locked and now you can download your locked PDF.

Here are some benefits of locking a PDF file using Zoopsign PDF Tools:

Content Integrity

A PDF can maintain its integrity by being locked. Before exporting a document as a PDF, if you put comments on it or authorised a particular version of it, you can stop later modifications by locking the PDF from editing. Another example of this is if you have embedded forms in the file for users to fill out. If the PDF is not locked, users might alter the embedded forms, either accidentally or deliberately.

Copyright Protection

One reason you might decide to lock a PDF file is to prevent copyright infringement on the information it contains. The same regulations may not always protect your work in other countries, even if copyright law in the United States shields original work owners from having their creations copied without their consent. It can take some effort and money to track down someone who has copied your work and convince them to quit.

Controlling Access

Unauthorized individuals can be stopped from accessing and reading a PDF file by locking it with a password. A password-protected PDF can assist maintain the secrecy of any secret information in the document.

Maintaining alignment

It's crucial to make sure that any columns, photos, or other components in your PDF stay aligned. Locking the PDF can stop these components from being inadvertently relocated, thereby saving a lot of time and work.

Unlock a PDF file

In today’s world, PDF security is essential. But If there are passwords in your PDF files, it might be a pain in the head for you. And if you want to unlock a PDF document you need a trustworthy online service. With Zoopsign PDF Tools, removing the password of a PDF is easy, fast and secure.

Our unlock PDF feature will quickly remove the PDF passwords for anyone. Finding the best tools to remove the password from their PDFs is challenging for an average PDF user. Zoopsign PDF Tools has created this tool for anyone to remove password just in a few seconds without any problem.

Here are the steps to unlock a PDF using Zoopsign Unlock PDF Tools:

  • Navigate to our Unlock PDF tool.
  • Upload the file from your computer, Google Drive, or Dropbox, or use the Drag and Drop option and click on next.
  • Put the password and press unlock.
  • You can download your unlocked file.

Here are some benefits of unlocking a PDF file using Zoopsign PDF Tools:

Safest and Most Secure Software

The system will make sure that none of your files are tainted with malware or viruses by using unlock PDF from Zoopsign PDF Tools. Users won't need to worry about the security of this process because Zoopsign PDF Tools is secure. This software will make sure that the process is carried out in a protected and secure setting. Your PDF files will remain private and confidential with this technique.

Zoopsign PDF Tools Can Be Accessed Anywhere

You should manage your PDF files with Zoopsign PDF Tools, notably for unlocking and erasing their passwords. Don't worry if you use a Mac, Linux, or Windows computer; you may access it using any of those platforms. As long as you have an internet connection, you can easily unlock any PDF file anytime, anywhere.


1. Do you keep a copy of my processed files?

Absolutely not. Your files are only yours. While your files are on our servers, they are strictly secured and no one can access them. We just keep them for a maximum of 2 hours so you can download them. Right after, they are completely removed forever from our servers. You can also delete the document by yourself at the end of each conversion. We won’t check, copy or analyze your files in any way.

2. Are company files safe with your service?

Yes. All uploads use https/SSL and include our end-to-end encryption for further privacy. These additional steps increase security and satisfy most corporate data privacy policies.

3. What pdf eSign do you offer?

The PDF eSign tool offers an intuitive signing experience for all your documents. There are 3 different ways to sign your PDF. It offers:

  • Aadhaar-based eSign, Type signature as text and Draw signature Here

4. What are other PDF utilities?

There are all the utilities zoopsign provides:

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