🔒 100% Secure Client-Side PDF Locker

Password Protect Your Statements

Lock your PDF bank statements or transaction exports with a password before emailing them. Completely secure client-side browser encryption.

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Drop PDF file here to lock
or click to browse from your device
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statement.pdf
0 KB

This password will be required by viewers to open the PDF. Note down this password; we cannot retrieve it if lost.

Applying browser cryptography...
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PDF Locked Successfully!

The file has been encrypted and is now protected.

How PDF Encryption Works

Browser-level document locking security

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1. Select Open PDF

Drop any unencrypted statement or document PDF file. Files stay strictly local.

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2. Enter Password

Specify the password. pdf-lib uses standard AES encryption to encrypt PDF pages.

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3. Client-Side Save

The encrypted file is built and downloaded instantly, keeping passwords 100% private.

Key Features & Benefits

🔒 Strong Browser Cryptography

Locks files with secure client-side password structures. We utilize pdf-lib encryption vectors directly, shielding account balances from unauthorized eyes.

👤 100% Privacy Preserved

Both the file and the password you select stay inside your browser memory. We never transmit files, passwords, or metadata to any server.

⚖️ Compliance Ready

Secure your spreadsheets and bank PDF audits before sharing them with accountants, lenders, or IRS auditors, meeting standard document sharing regulations.

💻 Instant Download

No queueing or processing delays. Clicking the lock button compiles the encrypted PDF in milliseconds for immediate download.

Frequently Asked Questions

No. The encryption process runs entirely client-side using JavaScript. Your password is used to calculate the crypto keys inside the browser sandbox, ensuring absolute local secrecy.
Because we store nothing and have zero access to your files or password strings, we cannot recover forgotten passwords. Make sure to note down your password safely.
This tool encrypts PDF format files. If you have Excel (.xlsx) or CSV spreadsheets, we recommend opening them in Excel or Google Sheets, selecting "Save As PDF", and then locking the exported PDF file here.
Yes. We apply standard PDF encryption parameters. Any generic PDF viewer—including Adobe Reader, Google Chrome, Microsoft Edge, Apple Preview, and mobile PDF applications—will recognize the lock state and prompt the user for the password.