PDF Unlocker

Problem: Password-Protected PDFs Lock You Out

You have a PDF that requires a password to open — a bank statement, a work document, or a file someone shared with you. You know the password, but you want to remove it so you don't have to enter it every time. Most solutions force you to:

• Upload sensitive documents to unknown servers (privacy risk)
• Deal with strict daily limits (2-3 files per day)
• Pay for premium subscriptions
• Install bulky desktop software

How PDF Unlocker Solves This

Our PDF unlocker removes password protection entirely in your browser — the file and password never leave your device.

• 100% private: Decryption happens locally with pdf-lib
• No limits: Unlock as many PDFs as you want
• No signup: No account, no email, no subscription
• Supports AES-128 & AES-256: Works with standard PDF encryption
• Preserves content: All text, form fields, and annotations remain intact

Why AI Chatbots Can't Unlock PDFs

Large Language Models like ChatGPT cannot process encrypted binary PDF files. PDF decryption requires cryptographic key derivation and AES/RC4 decryption of content streams — operations that require actual code execution, not text generation. AI cannot read, decrypt, or remove passwords from PDF files.

How to Use

1. Drop your password-protected PDF into the upload area
2. Enter the correct password for the file
3. Click "Unlock PDF" — decryption happens in your browser
4. Download your unlocked, password-free PDF

Frequently Asked Questions

Is this tool free? Are there daily limits?

Yes, completely free. No daily limits, no file count limits, no signup. Unlike Smallpdf (2 tasks/day), iLovePDF (upload + limits), or Adobe (requires subscription), our PDF unlocker has zero restrictions.

Does my PDF get uploaded to a server?

No. All processing happens entirely in your browser. Your PDF and password never leave your device. Open DevTools → Network tab and run the tool — you'll see zero outbound requests carrying your file.

Can I unlock a PDF without knowing the password?

No. You must know the password. We do not crack or brute-force passwords. The tool uses pdf-lib to decrypt the file using the password you supply. If you forgot the password, no tool can help — that's the purpose of encryption.

What encryption types are supported?

AES-128 and AES-256 encrypted PDFs (PDF security handler revisions 3-6). This covers the vast majority of password-protected PDFs created by Adobe Acrobat, Microsoft Office, and other modern PDF software.

What's the maximum file size?

Up to 100MB. Larger files may exceed browser memory limits on devices with less than 4GB RAM.

Will digital signatures be preserved?

No — digital signatures are invalidated when the file is re-saved without encryption. This is by design: a signature certifies the document hasn't been modified, and removing encryption is a modification. Content, form fields, text, and annotations are preserved.