How to add security to a PDF without passwords that cannot be removed
Prevent users from removing security from PDF files. Prevent a secured PDF from being edited, copied, printed or shared.
Locklizard enables you to create secure PDF files that do not use passwords. A secure licensing system with transparent key management, AES encryption, and DRM controls ensures PDF documents are protected from sharing, editing, copying and printing regardless of their location.
Make PDF files automatically expire, instantly revoke access, create dynamic watermarked documents with recipient name, block screenshots, track opens and prints, and more. Copy protect PDF documents so they cannot be shared, and protect PDF files from copying text and printing.