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PDF Expert for Mac runs only on macOS

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How to password protect a PDF:

  1. Download PDF Expert for free.
  2. Click on the 'File' menu.
  3. Select 'Set password' option.
  4. Enter and verify your password.

How to unlock a PDF:

  1. Click on the ‘File’ menu.
  2. Select the ‘Change password’ option.
  3. Enter a new password or click ‘Remove’ to delete the existing.

Sometimes PDF files are very private and confidential. It's the closest alternative to real paper documents, and you want them to be as secure as possible.

If there is a document about an upcoming companies merger or several financial statements, you don't want everyone to see them or use them without permission.

That's when you need to secure your files. If you were browsing web searching how to password protect PDF, we've got the answer for you. No, you don't need to chain a guard dog to your laptop! There's a simpler and more reliable way.

PDF files are commonly used for all sorts of content these days. Many times, these PDF files contain information that is private and confidential. It could be something as personal as your banking statements or tax information, or something much more complex like a multi-page deal between two companies.

This information should be seen by only a select few people, so it’s important to lockdown a PDF and its contents from others without permission. It's the closest alternative to physical paper documents, so this data needs to be as secure as possible.

It doesn’t matter what kind of data it is, it is very easy to secure contents of a PDF file. Let’s take a look at how to password protect PDF files with ease using PDF Expert for Mac. Once secured, anyone who wants to open the PDF file will need to enter the password to see the contents.

How to set a password on a PDF file

To password protect PDF, open the right document and click File menu. Then choose Set Password in the dropdown.

To password protect PDF, first open the document you want to secure in PDF Expert for Mac. If you don’t have the app, you can download a Free 7-day trial.

Once you have the file opened, go to the File menu at the top left corner of your screen and click on the Set Password… option.

Next, just enter the password you want in the Set Password box and click on the blue button when you’re done. Remember, it’s always ideal to use a combination of alphabets, numbers, and special characters in your password. The more complex a password is, the more secure it is.

Everything that happens next is sequential and easily understood. Enter your password (it better not be QWERTY or your birth date), repeat it, and you're done. You have set a reliable password for your PDF file. Now, no one can read it unless they know the magic combination of numbers, letters and symbols.

That’s it! Your PDF file is secured and anyone who wants to view it will need to enter the same password you’ve set. To make sure this worked, let’s try accessing the file ourselves. Let’s check to see if it’s a this is a reliable enough protection or if you still need a guard dog. (They eat a lot and usually kiss burglars!)

Find that file in your Recents or directly in Finder, double click on it and this is what you will see:

Isn't it cool? You enter the password you just created, and enjoy reading or editing your PDF.

Now let’s check out the main menu to see a preview of the file. This PDF Expert for Mac is really on the ball about security. Those locks won’t let us see the preview without the password.

Having proved the point, do you now want to change the password or make a super secure file back to an ordinary one? You can remove password in PDF in seconds.

“Wait,” you say. “How do I remove password from a PDF file?” you ask. We hear you. Just like you secured a PDF file with a password, you may want to change the password of a protected file, or even remove it completely.

Worry not, PDF Expert’s got your back. You can remove password in PDF in seconds, just as easily as you set it.

How to remove password from a PDF file on Mac:

  • Go to the File menu one more time
  • Click Change Password
  • Enter your password again and click 'Change' to set a new one or 'Remove' to delete the password.

It should be noted that PDF Expert is a great PDF password remover on Mac when you're the owner of the file. It's absolutely secure and reliable and won't let any outsiders to remove password in your PDF for malicious intent.

Some tips for creating a strong password (and remember it!)

  • Include numbers, capital letters and symbols;
  • Use a minimum of 12 characters;
  • Don't use dictionary words and their obvious substitutions; e.g. h0use is not cool;
  • Avoid putting biographical details into your password;
  • Use a password manager, e.g. 1Password.

Great! Now you know how to password protect PDF files with a strong and reliable password. No one can see them. Congrats, you just left your guard dog without a job! ;-) And if you accidentally delete your file, you can also recover a PDF with the right tools.

You are welcome to get a free 7 days trial to check PDF Expert out. Please don't hesitate to let us know what you think.