MacSonik PDF Encryption Tool for Mac is an ideal tool to protect unprotected PDF files by enabling passwords on them. This software helps users to add various levels of encryption to PDF files. It enables password Encryption to the PDF file with an option to save attachments in a different folder. Therefore, users who have the password can access the data of the PDF file. It has the unique feature of enabling password encryption for both User and Owner Passwords to Mac PDF files. This utility can encrypt multiple PDF files at once by maintaining data integrity. By securing your PDF file from password Encryption, users can also prevent data from modification. The software helps you to avoid any editing or omitting of your precious PDF files. Users can also change the password of an encrypted PDF file by using the MacSonik PDF Encryption Software. As you add files, you will see the Change Password for protected PDF files option. Tick the option to enable this feature. It does not damage users’ file content or attachments. Mac PDF Encryption Software does not alter the original file content while encrypting the PDF files. Users can also customize the location and file name of the resultant PDF file before the encryption process. Furthermore, it supports all versions of the PDF files generated by different Adobe Readers. This PDF Locker software is widely compatible with all the updated and old versions of Mac OS. It has an intuitive GUI that helps both technical as well as non-technical users to access it easily without any external help. You can download this premium Mac PDF Encryption Tool to lock or encrypt your PDF files for free. The demo version of the software puts the watermark on the resultant PDF file.