![]() To avoid the breach, I will recommend you use software that provides encryption to the content of your file (128-bit preferred) and not just a simple password. You may even find that your browser was directly able to open a password protected PDF you just received on Email. If you use a simple third-party app to set a password for opening your file, it might be breached by an app that doesn’t recognize such a lock feature. If you have a doubt on how protected your PDFs are, well, that depends on what kind of protection have you applied on your file. Alternatively, you can also double-click the file to open it with Preview. To do this, simply right-click the PDF file that you want to remove the password from and select Open With > Preview. ![]() As a first step, you need to use Preview to open a password-protected PDF file. Or if you are sending a file to someone you would want only such person to be able to read the content. Remove passwords from PDF files on Mac with the Preview tool. In terms of security, PDF is generally a read-only format and its content cannot be edited easily but sometimes you do feel a need to password protect your PDF file so that no can access the content at all. Its availability on all OS platforms and all devices makes it a common ground for sharing any document. PDF is the most used format for a published document.
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