Unlock PDF File
Decrypt and permanently remove password protection from your PDF files locally.
How to use this tool
Step 1: Upload Protected PDF
Select the password-protected PDF file.
Step 2: Enter Password
Type in the password to authenticate ownership.
Step 3: Decrypt Document
Click unlock to strip away the security restrictions.
Step 4: Save Unlocked PDF
Download the unlocked PDF directly.
Frequently Asked Questions
Can I unlock a PDF if I don't know the password?
No. To unlock a file, you must know the password. The password is required to decrypt the contents in browser memory.
Are my files uploaded during unlocking?
No. Decryption is performed entirely inside your browser sandbox. Your files and passwords never leave your device.
Are my PDF files uploaded to any server?
No. Your PDF files are processed entirely in your web browser using WebAssembly. Your files never leave your device.
Is there a limit on the file size or page count?
No. Since the processing runs locally on your computer, there are no hard limits enforced by our server. It only depends on your system's memory (RAM).
Is this PDF tool completely free?
Yes, all PDF tools on Zaeyon are 100% free with no limits, no registration, and no ads or watermarks.
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Why Zaeyon?
Private, free, and browser-based — no account, no uploads, no compromises.
Zero Uploads
Your files never leave your device. All processing happens locally in your browser memory — nothing is sent to any server.
100% Free Forever
No subscriptions, no hidden fees, no daily limits. Every tool on Zaeyon is permanently free to use without an account.
Instant & Powerful
Powered by WebAssembly — the same low-level technology used in native apps — so processing is fast even for large files.
Works Offline
Once the page loads, the WebAssembly engine runs entirely on your device. No internet connection needed to process files.
Works Everywhere
No software installation required. Runs directly in your browser on Windows, Mac, Linux, iOS, and Android.