Controlling how long someone can access a PDF file is one of the most effective ways to protect sensitive information, confidential reports, or paid digital content. With VeryPDF DRM Protector, you can create documents that automatically expire after a specified
How to Secure and Lock PDF Files to IDE, SCSI, or USB Hard Drives Using WMIC Serial Numbers and VeryPDF DRM Protection
If you want to protect your PDF files and ensure they can only be opened on a specific hard drive or USB drive, you can use hardware-based DRM. One of the most reliable ways to achieve this is by obtaining