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Password Protect PDF

FreePrivateInstant

Tips for better compression:

  • • PDFs with images compress better than text-only documents
  • • Higher compression may reduce image quality
  • • Use "Medium" for most documents
  • • Use "Extreme" for email attachments

Add password protection to your PDF files. Secure your documents.

Quick Links

What is Password Protect PDF Online?

Add password protection to PDF files. Secure your documents with encryption. Our free online tool makes it easy to add password to pdf without installing any software. Simply use your browser to get started instantly.

Features

Password protection
Strong encryption
Restrict editing
Restrict printing
Secure processing

How to Use Password Protect PDF Online

  1. 1Upload PDF
  2. 2Set password
  3. 3Choose restrictions
  4. 4Download protected PDF

Why Use Our Password Protect PDF Online?

Fast & Free

Instant results with no signup or payment required.

Secure & Private

All processing happens in your browser. We never store your files.

No Installation

Works on any device with a web browser. No software needed.

Frequently Asked Questions

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