Here are the top 2 most popular pdf security softwares as derived from our TpSort Score which is a continually popular score, it denotes an estimated popularity of a software.
Locklizard Safeguard PDF Security provides total PDF DRM protection and control over your documents through a multi-layered protection mechanism that does not rely on passwords. Locklizard Safeguard PDF Security enforces DRM controls, uses US Government strength encryption (AES 256-bit), real-time licensing and public key technology. There are no passwords, plug-ins......
Now it’s time to give high level of security to your portable documents with Secure PDF program. Set a unique password of unlocked PDF files. Lock unlimited number of PDF files according to your choice password. This tool allows you to set a unique and strong password of PDFs by......
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