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And since this is a more advanced tool within Nitro PDF Pro for Mac, it’s worth addressing in its own section.įor starters, you can refer to the Document Permissions section of Nitro PDF Pro for Mac. Now we’re talking about adding an owner password. But what if you want to protect the ability to edit permissions on the PDF itself? What do you do then? Thus far, we’ve talked about user passwords: the passwords people need to simply view a PDF, perhaps for signing a contract.

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How to Add an Owner Password to a PDF on Mac To go from a password-protected PDF to an unprotected file, you can simply change out Strong to Weak. Within Nitro PDF Pro for Mac, it’s simply a matter of setting different encryption levels. This time, select Weak.īy now, you should have a pretty clear idea of how you can password protect (or un-protect) your PDFs on a Mac.

At the bottom of the Save dialog, you’ll see the list of encryption options again.

In the new document you’ve created, do File -> Save or Command + S.

Go to File -> Duplicate or Command + Shift + S.

What happens if you change your mind about the level of security you need with a PDF? This is when you’ll want to think about removing the requirement that a user enter a password to view it. For this reason, you’ll generally select “Strong” to get reasonable levels of encryption for your password-protected document. This is the highest level and will activate compatibility requirements that can sometimes be difficult for every user to meet.

Strongest, Least Compatible: 256-bit AES encryption.

In macOS 10.5 and later, people will be able to see it in Preview.

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With this enabled, users of Nitro PDF Pro for Mac v4.2 and later will be able to view it, as will people with Adobe Reader 7 and later. Strong: This is 128-bit AES encryption.Anyone with a regular PDF viewer will be able to view the file, which is why you’ll need to select a stronger level to activate the password protection. Weak: This is a 40-bit RC-4 encryption level.Why “Strong”? Here’s what you’ll need to know about each encryption level: If you read through the above but haven’t tried it out yet, you’ll notice that we recommended that you choose “Strong” as your encryption level within the Save dialog. Understanding the Different Encryption Levels However, to open the file and view it, the user will be prompted to enter the password, which you will have to provide. You can send it for signatures, for example. Now what happens? Essentially, the file will work just like any other file you have. Re-enter the password when it requests that you verify your password.Enter a password into the password field.This will open a “Save dialog.” At the bottom of this dialog, you can select an encryption option.In the new file, use File -> Save or Command + S to save.Go to File -> Duplicate (Command + Shift + S on Mac).

Open the file you want to password protect.

If you’re letting people view, but not modify, the PDF, you’ll want to set a user password. Setting a User Password within Nitro PDF Pro for Mac If you want someone to be able to change document permissions, then you would go the owner password route. To create a user password on the document, you’ll create a password multiple people can know to view the document. Here’s what you’ll need to do.įirst, you’ll need to choose between two key options. It makes handling PDFs easy.Īnd once you know how to do it, adding a password to your PDF file will seem laughably simple.

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How to Add a Password to a PDF File on Mac Computersįirst things first: PDF management is far easier when you have reliable software you can use. Here’s how you can password protect a PDF on Mac - devices without pulling out your hair.

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It’s also frustrating figuring out how to do so if it’s Windows or Mac. Yet many people don’t take the small time investment to password protect their PDFs.įor many, the reason is simple. It’s not exactly something that you’d want floating freely on the Internet. If you leave these unprotected, you can become an easy target for identity thieves. Bank information, social security numbers, you name it. It includes critical financial information-and personal information like names and dates. Let’s say you have a $250,000 contract to manage.