How to Password Protect PDF File in Mac OS X


Password protecting your PDF files or document is the best way to ensure that your PDf files are not accessed by unauthorized users. Now to create Password protected PDF file you can use either Adobe Acrobat, which requires you buy a licence before you can use it or make use of your Mac OS X’s inbuilt tool to password protect PDF files. Here is how to password protect PDF files in Mac OS X.

How to Password Protect PDF File in Mac OS X

Note that we will be using TextEdit app to password protect your PDF file. However, you can make use of any other app which supports save as PDF option to do the same.

Step 1: Start by opening the document you would like to password protect.

Step 2: Once you have opened your document, click on File from the tool bar (top left corner).

Step 3: Next, select PDF and then select Save as PDF from the context menu. 

Step 4:  Provide a name for your PDF document, fill other optional details like Title, Author and Subject if you want. 

Step 5: Click on Security Options button. This will open the PDF Security Options window.

Step 6: In the next window, check “Required password to open document” option.

Step 7: Below that, enter password for your PDF document and enter the same password to verify it.

Step 8:  Once verified, click on OK button to save the changes.

Tip: You can also set password for copying text, images and other content and password for printing the document.

Step 9: Next, Save your PDF document by clicking on Save button.

That’s it. You have password protected your PDF file on Mac OS X . Now locate your password protected PDF file and try opening it. It should ask you to enter password for opening the file. Enter correct password to open your file and read it. You will also notice that password protected PDF files in Mac OS X will be shown with a locked icon than a standard PDF file. 


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