Unlock PDF
Unlock password-protected PDFs you own. Enter the password to remove encryption. All processing in your browser — your PDF never leaves your device.
Only use on PDFs you own or have explicit permission to unlock.
Click or drag a password-protected PDF here
How to use Unlock PDF
Remove the password from a PDF you own — entirely in your browser with no file uploaded to any server. Whether you've forgotten the owner password or need to remove restrictions that prevent copying, printing, or editing, this tool handles PDF decryption locally. You must know the current password to proceed; this tool cannot crack unknown passwords.
- Upload the password-protected PDF.
- Enter the owner or user password when prompted.
- Click "Unlock PDF" — the tool decrypts the document in your browser.
- Download the unlocked, restriction-free PDF.
- Optionally re-add a password later using the Watermark tool or a PDF editor.
Your data never leaves your device — 100% private processing.
PDF password types: user vs. owner
PDFs support two password types. The user password (also called the open password) encrypts the file contents — without it, the PDF cannot be opened at all. The owner password (permissions password) does not encrypt content but restricts operations: printing, copying text, editing, or adding annotations. Many PDFs have only an owner password that can be removed by supplying it — common with exported reports and bank statements that restrict copying for formatting reasons.
| Password type | Encrypts content? | Controls | Common source |
|---|---|---|---|
| User (open) password | Yes | File access | Secured document sharing |
| Owner (permissions) password | No | Print / copy / edit restrictions | Bank statements, exported reports |
Legal and ethical use
This tool is intended for legitimate use: removing restrictions from documents you own or have permission to modify. Common legitimate scenarios include removing the owner password from a bank statement PDF to enable text selection, unlocking a corporate template you created, or recovering access to your own documents. Attempting to crack or bypass passwords on documents you do not own or have authorization to access may violate copyright, computer fraud laws, and terms of service.
Glossary
- RC4 encryption
- An older PDF encryption cipher (40-bit or 128-bit) used in PDF 1.1–1.5. Considered weak by modern standards.
- AES encryption
- Advanced Encryption Standard — a strong 128-bit or 256-bit encryption method used in PDF 1.6 and later.
- Owner password
- A PDF permission password that restricts operations like printing and copying without encrypting the file content.
- Permission flags
- Bits in the PDF encryption dictionary that control which operations (print, copy, edit, annotate) are allowed.
Related reading
Frequently Asked Questions
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Why use Unlock PDF?
- Process files entirely in your browser — nothing is uploaded to any server
- Works on any device: desktop, tablet, or mobile
- No watermarks, no account required, completely free
- Handles multi-page PDFs without file size penalties
Common use cases
- Merge contracts before emailing to a client
- Split a large PDF report into separate deliverables
- Compress PDFs before attaching to email
- Remove a password from a personal PDF document
- Convert scanned images into searchable PDFs
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