Protect PDF with Password
Encrypt your PDF files with a strong password. Prevent unauthorized access, copying, or printing of your sensitive documents.
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Protect PDF
Drag & Drop PDF file here or
Important: If you forget this password, there is no way to recover it. Please remember it!
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How to Lock a PDF File?
- Upload: Choose the PDF you want to secure.
- Set Password: Type a strong password that you want to use for the file.
- Encrypt: Click "Encrypt PDF". Our tool will wrap the file in secure encryption.
- Download: Save the file. Now, it cannot be opened without the password.
Why Encrypt PDF?
If you are emailing bank statements, contracts, or personal data (ID copies), it is risky to send them unprotected. Encrypting the PDF ensures that even if the file is intercepted, no one can read it without your password.
FAQ: PDF Security
What encryption is used?
We use standard PDF encryption (128-bit AES), which is compatible with all modern PDF readers like Adobe Acrobat, Chrome, and Edge.
Is it safe to type my password here?
Yes. The encryption process happens entirely in your browser (Client-side). Your file and your password are never sent to our servers.
Does it prevent printing?
Yes, by default, we restrict modification permissions when you lock the file to ensure maximum security.