Add password protection to PDF files

Securely protect your PDF files with password encryption. Upload your PDF, set a strong password, and download the protected version instantly.

1. Upload your PDF file

Drag and drop your PDF here, or browse files

Maximum file size: 50MB

2. Set PDF password

Your files are secure

Files are processed securely on our servers and automatically deleted after processing. Your passwords and files are transmitted securely via HTTPS.

Frequently Asked Questions

Is it free to password-protect my PDF?

Yes, TinyKit's PDF protection tool is completely free with no file size limits or watermarks.

Are my files stored on your servers?

No. All PDF encryption happens locally in your browser. Your files never leave your device.

What encryption standard is used?

We use AES-256 encryption, the same standard used by banks and government agencies.

Can I set different permissions like preventing printing or copying?

The password protection applied here restricts opening the PDF entirely. Anyone without the password cannot view, print, or copy any content from the document. This is the strongest form of PDF protection available.

What happens if I forget the password I set?

Since we don't store your files or passwords, there is no way for us to recover a forgotten password. Always save your password in a secure location like a password manager before protecting your PDF.