Unlock PDF — Remove PDF Restrictions & Passwords
Remove owner restrictions (printing, editing, copying text) and decrypt password-protected PDF files directly on your device. Powered by qpdf in WebAssembly, your documents never touch a server. This tool removes permissions on files you own; it does not crack unknown passwords.
Use Cases
How to unlock a PDF file
Drag and drop your protected PDF file into the drop zone or browse your files (up to 200 MB).
If the PDF is encrypted with an open/user password, type it into the password field. If only owner restrictions apply, leave it blank.
Click Unlock to strip restrictions using local WebAssembly processing in your browser.
Save your unrestricted PDF with all permissions restored for printing, copying, and editing.
Frequently Asked Questions
- Can this tool crack or recover a forgotten PDF password?
- No. This utility does not brute-force or bypass unknown open passwords. If a PDF requires a password to open and view, you must provide the valid password so qpdf can decrypt the document.
- What is the difference between open passwords and owner restrictions?
- An open (user) password prevents anyone from viewing the file without entering it. Owner permissions allow viewing but disable features like printing, editing, or copying text. This tool removes owner restrictions directly.
- Is my PDF uploaded to any server during unlocking?
- No. Decryption runs 100% inside your browser using a sandboxed WebAssembly build of qpdf. Your document bytes and passwords never leave your device.
- What is the maximum file size supported?
- You can process PDF documents up to 200 MB. Processing large files depends on your device memory since all decryption runs locally in your browser.
- Will unlocking alter the text, images, or formatting of my PDF?
- No. qpdf decrypts the internal streams without modifying page layouts, fonts, vector graphics, or embedded media.
Your PDF is decrypted entirely in your browser via WebAssembly — your document and password are never uploaded to a server.
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