Whether you need to keep a sensitive document private, or you've received a password-protected PDF you'd like to open freely, this guide shows you how to add or remove a PDF password for free — directly in your browser, no software required.

Why Password Protect a PDF?

Adding a password to a PDF is one of the simplest ways to keep sensitive information private:

  • Confidential documents — Contracts, financial reports, and personal records
  • Email attachments — Add a layer of protection before sending sensitive files
  • Shared storage — Extra security for files kept on cloud drives
  • Compliance — Some industries require password protection for certain documents

How to Protect a PDF — Step by Step

Using Mishu ❤️ PDF's Password Tool, you can add a password in 3 easy steps:

  1. Open the Password Tool
    Visit our free tool and select "Protect PDF" mode.
  2. Upload Your PDF
    Click "Select File" or drag and drop your PDF.
  3. Set & Confirm Password
    Type your password twice, then click "Protect PDF" to download the secured file.

Protect or Unlock Your PDF Now — It's Free! 🔒

No signup, no software, no limits. Secure your document in seconds.

🔒 Open PDF Password Tool

How to Unlock a PDF You Already Have Access To

If you know a PDF's password and want to remove it, switch to "Unlock PDF" mode, upload the file, and enter the current password. The tool renders each page and rebuilds the PDF without the password.

💡 Important

Unlocking rebuilds pages as high-quality images to remove the password — visual quality stays sharp, but text will no longer be selectable or searchable afterward.

What This Tool Can't Do

This tool can only remove a password you already know. It cannot crack, guess, or bypass passwords you don't have — that would require specialized (and often illegal) tools, and we don't support that.

Frequently Asked Questions

Is this tool completely free?

Yes! Mishu PDF's Password tool is 100% free — no hidden charges, no subscription, no watermarks.

Can this tool crack a password I don't know?

No. It can only remove a password from a PDF if you already know it.

Will unlocking affect my document's quality?

Visual quality stays high, but text becomes non-selectable since pages are rebuilt as images.

Are my files and passwords safe?

Absolutely. Everything is processed entirely in your browser — nothing is uploaded to any server.

PDF Password Protect PDF Unlock PDF Free Tools How To