Free online PDF unlocker tool. Remove password protection from PDF files. Supports removing PDF open password (user password), outputting unprotected PDF files. Pure frontend local processing, files never uploaded to any server. Perfect for forgotten PDF passwords or editing protected documents.
📁 Drop PDF file here or click to select
Enter Content: Type, paste, or upload the content you want to process. All processing happens locally in your browser — no data is uploaded to any server.
Configure Options: Adjust available options and settings to customize the output format.
Get Results: Copy the result or download the file once processing is complete. All processing is done locally — no data is uploaded to any server.
PDF files typically have two types: User Password (open password) — required to open the file; Owner/Permissions Password — restricts printing, copying, editing. This tool supports removing the open password (user password). For permission passwords, removal depends on the PDF's encryption strength (40-bit RC4 is usually removable, 128-bit AES depends on password complexity).
No. Removing a password is a decryption process that does not modify the PDF's content, formatting, images, or page layout. The output PDF is visually and functionally identical to the original, just without the password requirement. File size may change slightly due to re-encoding during decryption.
This tool supports most standard PDF encryption formats (RC4 and AES). Limitations: ① Highly encrypted PDFs (e.g., 256-bit AES) ② PDFs with only permission password but no open password ③ The tool cannot recover or guess passwords — it requires the correct password to unlock. For documents you have the password to but want to remove protection, this tool works perfectly.
No. Everything runs locally in your browser. Your PDF file is read by the browser and all decryption happens on your device. The file content and password are never transmitted or stored on any server — the tool works even offline, ensuring document privacy and security.
This tool cannot crack or guess passwords — brute-forcing requires massive computing power unavailable in a frontend environment. Suggestions: ① Try common passwords (birthdays, phone numbers) ② Check your password manager ③ Contact the document sender for the password ④ Try empty password or common defaults like 'admin' for permission passwords.