Decrypt any password-protected PDF file online. Supports AES-256 and RC4 encryption. Processing happens in your browser.
Part of our Unlock PDF Free suite
Decrypt password-protected PDF files online without uploading them to any server. Most online decryption tools require you to upload your sensitive document to their cloud, where it is processed on their servers before being sent back. This tool takes a fundamentally different approach: the entire decryption process runs in your browser using the Web Crypto API. Your PDF file and password never leave your device. The tool auto-detects whether the PDF uses AES-256 or RC4 encryption and applies the correct decryption algorithm automatically. You enter the password, the browser does the work, and you download the unlocked result — all in seconds. This is the privacy-first way to handle encrypted PDFs online, combining the convenience of a web app with the security guarantees of offline desktop software.
Select or drag and drop the password-protected PDF file you want to unlock.
Type the user or owner password that was used to encrypt the PDF file.
Get a copy that opens freely without any password prompt. All content preserved.
Decrypt password-protected files on any device without installing software — ideal for employees working from personal laptops or shared workstations.
Works in any modern browser on Windows, Mac, Linux, ChromeOS, and even tablets. No platform-specific software needed.
Received a protected PDF you need to read once? Decrypt it in your browser without installing anything, then close the tab.
Although the tool does not store your password, closing the browser tab after downloading the unlocked file is good practice to clear any temporary data from browser memory.
After decrypting, open the PDF and scroll through all pages to confirm content integrity before discarding the encrypted original or forwarding the file.
Always access this tool over HTTPS (the default). This ensures no one can intercept the page itself, even though the PDF never leaves your browser.
All processing happens locally in your browser. Your files never leave your device.
No uploads, no waiting for servers. Instant processing powered by your device.
No limits, no watermarks, no registration required. Free forever.
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