How to add security to PDF documents & prevent removal
How to add security to PDF files that users cannot remove (unlike password protection which is useless). Safeguard PDF Security adds DRM protection to PDFs and prevents sharing, copying, modifying, printing and screenshots.
It locks documents to devices so they cannot be shared and optionally to locations. Add dynamic watermarks to identify users, expire PDFs after a period of time or use, and instantly revoke access.
Locklizard Safeguard uses transparent key management with a secure licensing system instead of insecure password protection (where passwords can be shared or removed and permissions instantly removed).