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File Utility Secure & Local

PDF Password Protector.

Add password protection and secure encryption to your PDF documents. Set user/owner passwords and customize print or edit permissions client-side.

Upload PDF File

Drag and drop your PDF here or click to browse from device

Security Settings

Permissions Dashboard
Document Unlocked Upload a PDF document to customize password rules and secure document usage permissions.
Document State: Unsecured
Status: Ready

About PDF Password Protector

PDF Password Protector is a high-performance web utility built to add password protection and secure encryption to your PDF documents. Set user/owner passwords and customize print or edit permissions client-side instantly and securely. Because it is designed with a local-first architecture, all processing occurs directly in your browser's memory using client-side JavaScript. This ensures that your files, code, or private text inputs are never uploaded to any external server or tracked by third-party analytics.

Whether you are formatting source code, cleaning text files, converting file structures, or running diagnostics, running these processes locally in your browser memory sandbox eliminates network latency and protects your data privacy.

Frequently Asked Questions (FAQs)

How does the PDF Password Protector work?

Our tool encrypts your PDF file client-side using advanced algorithms like AES-256. You specify a password, and a protected copy is generated locally in your browser memory for immediate download.

Is my PDF password secure?

Yes, completely. Because the encryption happens entirely inside your browser sandbox, your PDF document and password never leave your device. They are never transmitted over the internet.

What is the difference between AES-256 and RC4?

AES-256 is the modern standard for strong encryption, widely recommended for all documents. RC4 is a legacy 128-bit algorithm supported by older PDF viewers but is considered less secure.

Can I prevent printing or copying text in my PDF?

Yes, our tool allows you to configure advanced document permissions, letting you restrict printing, content modification, copying, and adding annotations.

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