PDF Tools

Add a Password to a PDF

Add a password to a PDF online. Encrypt documents so they require a password to open.

  • Private when possible
  • No account required

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About this tool

When you need a clear “set password” workflow, Add PDF Password encrypts your document with the same AES client-side engine as Protect PDF. Ideal for searchers who phrase the task that way.

How to use

  1. Upload your PDF.
  2. Choose a strong password and confirm it.
  3. Apply protection.
  4. Download the password-locked PDF.

Features

  • Same encryption engine as Protect PDF
  • Confirm-password UI
  • Client-side AES
  • Unique SEO guidance for password setup

Common use cases

  • Secure email attachments
  • Client deliverables
  • Personal archives

Supported formats

PDF

Privacy

This tool processes data in your browser. Content is not uploaded to our servers unless a feature explicitly requires a network request.

Frequently asked questions

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