PDFArea PDF Encrypt 6.4 | 4 MB PDF Encrypt is a quick and easy-to-use PDF...
Main Features:
Supports 40-bit RC4, 128-bit RC4, 128-bit AES and 256-bit AES Encryption.
Supports user password and owner password.
Prevent printing, copying, extracting, changing, editing, etc.
Easy to use.
Support drag and drop PDF files.
Does NOT need to install Adobe Acrobat software.
Doesn\'t depend on any print driver.
Batch...