As you launch the MacSonik PDF Encryption Tool, you will find the screen displayed below.
Follow the below-mentioned steps of the MacSonik PDF Encryption Tool.
In the given interface of the software, click the Select File/Select Folder option to add the required files/folders.
Now locate the required files/folders and click Open. you can select both protected and unprotected files.
You can opt for the Choose Encryption Level option. You can also add the Owner’s Password and User password.
You can also select some additional features like Allow Content Copying or Extraction, Allow Changing the Document, Allow Low-Resolution Printing, Allow Authoring Comments and Form Fields, and many other features.
There is another option to Edit MetaData of the PDF like Author, Title, Subject, Creation Date, Modification Date, and Keywords.
Select the Save Attachments in Sub Folder option if you want to save the attachment files in another folder. You can also select Add Password for Unprotected PDF(s) & Change Password for Protected PDF(s) and Add Password for Unprotected PDF only options as per your requirement.