Password Protect PDF

Password protect your PDF files instantly using strong AES-256 encryption. This ensures that only people with the correct password can open and view your document.

Unlike many tools, this solution is completely free, requires no signup, and does not add any watermark. Files are securely processed and automatically deleted after encryption.

Need to prepare your file first? Use Merge PDF to combine files or Split PDF to extract pages before protecting.

• Sending confidential documents via email
• Protecting financial or legal files
• Securing personal identity documents
• Sharing business reports with restricted access
• Uploading sensitive files to cloud storage

1. Upload your PDF — drag & drop or select your file

2. Enter a strong password — use a mix of letters, numbers, and symbols

3. Download protected PDF — instantly encrypted and ready

This tool uses AES-256 encryption, the same standard used by banks and enterprise systems. Once applied, the PDF cannot be opened without the correct password.

Your file is uploaded over HTTPS, encrypted on a secure server, and automatically deleted after processing. Passwords are never stored.

If you forget your password, there is no way to recover it. The file will remain permanently locked.

If you already have access and want to remove a password, use Unlock PDF.

Is this PDF password protection free?
Yes. It is completely free with unlimited usage and no signup required.

What encryption is used?
AES-256 encryption is used, which is the industry standard for securing PDF files.

Is my file safe?
Yes. Files are uploaded securely via HTTPS, encrypted, and automatically deleted after processing.

Is the password stored?
No. Your password is never stored on the server.

Can I recover a forgotten password?
No. There is no way to recover a lost password.

Will the protected PDF work everywhere?
Yes. It works with all major PDF readers including Adobe Acrobat, browsers, and mobile apps.

Does this add a watermark?
No. Your file remains clean without any watermark.

Does it work on mobile?
Yes. The tool works on all modern devices including phones and tablets.

Can I password protect a PDF offline?
This tool requires secure upload and processing, then deletes the file immediately after encryption.