How to protect a PDF without passwords & grant access to a protected PDF file
How to use Safeguard PDF Security to protect PDF files without passwords and then grant access to the PDFs you protect. Rather than using passwords, Safeguard PDF DRM uses secure and transparent key management - there are no passwords for users to enter, manage, remove, or share with others.
Once you grant access to a protected PDF, an authorized user can open it instantly in the Safeguard Secure PDF Viewer.