Original question from client John wrote: Hello, I have some requirements regarding PDF locking for my private coaching, where i need to lock the PDFs so that they cannot be copied, forwarded as E-Mails, printed, edited or opened by more
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