Free PDF Tool

🔐 Protect PDF

Add a password to your PDF and control what users can do with it.

Choose PDF

Choose File

📁 Select a PDF
🖱️ Drag & Drop

File Size0 KB
Total Pages0

Protection

Password strength—
0%

Choose a PDF file to begin.

Result

Your protected PDF will appear here.
PDF Size—
Simple & Useful

Protect PDF Features

Add password protection and document permissions.

Password Protection

Set a password required to open the protected PDF.

Print Control

Choose whether printing is allowed.

Copy Control

Control copying of text and content.

Original Safe

Your original PDF stays unchanged.

How It Works

Protect PDF in 3 Steps

1

Upload PDF

Select your PDF document.

2

Set Password

Enter and confirm a password.

3

Download

Download your protected PDF.

FAQ

Frequently Asked Questions

Can I add a password to a PDF?

Yes. The PDF is encrypted with QPDF WebAssembly directly in your browser.

Can I control printing and copying?

Yes. You can choose printing, copying and modification permissions.

Is the original PDF changed?

No. The original file remains unchanged and a new protected PDF is created.

Does my PDF get uploaded?

No. The PDF is processed in browser memory. The QPDF engine itself is loaded from the CDN.

Features

Protect a PDF with a password and permissions.

Simple workflow

  • Clear controls focused on the main PDF task.
  • Useful settings are kept close to the tool workspace.
  • Results can be reviewed before the final download where supported.

Browser friendly

  • Works directly from a modern web browser.
  • No desktop installation is required for normal use.
  • Responsive layout for computer, tablet and phone screens.

Practical output

  • Designed for everyday file and content tasks.
  • Original input is not changed by the download step.
  • Easy reset and repeat workflow where supported.