Lock your PDF files with a secure password. We flatten and encrypt your document entirely offline in your browser for maximum security.
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Military-Grade Flattening: This tool converts your PDF text into unselectable images before locking it. This prevents text copying and guarantees 100% offline privacy.
Our Advanced PDF Protector runs 100% offline directly in your browser. Unlike traditional online tools that require uploading your private documents to external servers, we secure your files locally on your device.