There are two types of secured PDF documents: your file is asking for password when you want to open it, or, your file can be opened normally, but some operations are restricted (e.g, printing or editing) and requires password to unlock it. The first password is known as document open (or user) password, and the second is permissions password (also known as a master or owner password). Adobe Acrobat uses different algorithms to apply PDF security with 40, 128 and 256 bit keys. Wondering how to remove PDF password protection? Here is the answer!
This article is mainly talking about how to remove owner password from PDF files on Mac OS X. And the tool you need is PDF Password Remover for Mac, which makes it much easier to remove PDF owner password on Mac. It is professionally designed for Mac users to remove PDF owner password so that you can copy, print and even edit the PDF content without any limitation. What's more, it can also work on the user password. Below shows the details on how to remove owner password from PDF on Mac with it.
Tips: Windows version of the software is also available. Just choose the right version downloaded on your computer.
Step 1: Add PDF Files
Double click shortcut icon on desktop to start the program. And you can add PDF files in two ways: click File-> Add PDF Files to import PDF files; Or directly drag and drop a batch of PDF files to the interface.
Step 2: Choose output destination
Choose "Browse" button in the main screen. Set the destination folder to save your unlocked PDF file in the footer of the control panel.
Step 3: Remove Owner Password from PDF on Mac
You can click the "Start" button to delete PDF owner passwords on Mac. And wait for seconds, the process to remove PDF owner password is finished.
You have to use a PDF Editor software for Mac to edit the PDF file after clearing owner password from PDF files on Mac, because only PDF editor can directly edit PDF files. By the way, you can Convert PDF to DOC Mac and edit PDF in Word.