Safeguard PDF Security by Locklizard Ltd. is a digital rights management (DRM) software designed to protect PDF files from unauthorized access, copying, editing, printing, and distribution. Safeguard PDF Security uses AES encryption, public key technology, and licensing controls to ensure PDF files remain protected regardless of their location. It enables secure sharing or selling of PDF files by controlling access and enforcing usage duration. Safeguard PDF Security allows users to stop copying and editing, limit prints, expire and revoke access, stop screenshots, and watermark PDFs with dynamic data to identify users. Protected PDFs are locked to authorized devices, preventing sharing, and files are decrypted in memory to avoid unprotected distribution.