PDF Lock, Unlock & Encrypt

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Lock / Unlock= standard PDF password (opens in any viewer). · Encrypt / Decrypt = AES-256 .pdf.enc (max security, this tool only).

Click or drag a password-protected PDF

Aadhaar, bank statements, payslips, any standard PDF password

Files are processed locally — they never leave your browser.

About PDF Lock, Unlock & Encrypt

PDF Lock, Unlock & Encrypt is an all-in-one PDF password tool with four modes. Lock and Unlock add or remove the standard PDF user password — the same format used by Aadhaar cards, bank statements, salary slips, and government PDFs — and the result opens in any PDF viewer. Encrypt and Decrypt provide stronger AES-256-GCM file-level protection (120,000-round PBKDF2), producing a .pdf.enc container that only this tool can restore. Everything happens in your browser — no file is ever uploaded.

How it Works

1Lock / Unlock: add or remove a standard PDF password that opens in any viewer (Adobe Reader, Chrome, mobile).
2To unlock, the tool auto-detects the protection — enter the known password, verify it, then download a clean copy.
3Encrypt: wrap any PDF in AES-256-GCM and download a .pdf.enc file for maximum security.
4Decrypt: restore a .pdf.enc file back to the original PDF with your password.

Frequently Asked Questions

What is the difference between Lock and Encrypt?

Lock adds a standard PDF user+owner password (the same format as Aadhaar, bank statements, and payslips) — the file opens in any PDF viewer and just needs the password. Encrypt uses AES-256-GCM custom encryption and produces a .pdf.enc file that is much stronger but can only be opened by decrypting it in the Decrypt tab.

Can this tool crack or bypass an unknown password?

No. The Unlock and Decrypt tabs only work when you already know the correct password. They do not brute-force or guess passwords.

Is it legal to remove PDF password protection?

Yes, if you own the document or have authorisation from the owner. Always ensure you have the right to unlock the files you process.

Why does the unlocked PDF look like scanned images?

When removing a standard PDF password, each page is rendered to a canvas at 2× resolution and re-embedded as a high-quality image — the only browser-safe way to strip native PDF encryption without a server. Visual quality is preserved but text may not be selectable. For text-layer preservation use a desktop tool like Adobe Acrobat. The Encrypt/Decrypt AES flow preserves the original PDF byte-for-byte.

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About PDF Lock, Unlock & Encrypt

How it Works

1Lock / Unlock: add or remove a standard PDF password that opens in any viewer (Adobe Reader, Chrome, mobile).

2To unlock, the tool auto-detects the protection — enter the known password, verify it, then download a clean copy.

3Encrypt: wrap any PDF in AES-256-GCM and download a .pdf.enc file for maximum security.

4Decrypt: restore a .pdf.enc file back to the original PDF with your password.

Command Palette

About PDF Lock, Unlock & Encrypt

How it Works

Frequently Asked Questions

About PDF Lock, Unlock & Encrypt

How it Works

Frequently Asked Questions