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PDF SECURITY & PRIVACY

Protect PDF
with password.

Add strong password protection and military-grade AES-256 encryption to your sensitive PDF files directly in your web browser. Confidential contracts, statements, and tax forms never leave your device.

  • Bank-Grade AES-256Standard 256-bit AES encryption compliant with modern PDF readers and mobile viewers.
  • Password Strength IndicatorReal-time visual feedback guides you to create strong, secure passwords.
  • Zero Server UploadsProtection runs 100% on your device using the browser Web Crypto engine.
  • Universal Reader SupportProtected files prompt for a password in Adobe Acrobat, Chrome, Apple Preview, and mobile apps.

Important Privacy Notice
Make sure you record your password. Toolifybox does not track or store passwords, and lost passwords cannot be recovered.

SECURITY & ENCRYPTION

Protect PDF

100% Private
  1. 1Select PDF
  2. 2Set password
  3. 3Download PDF

Select a PDF to Protect

Drag and drop your PDF here, or click to browse files up to 20 MB.

🔒 Files are encrypted client-side. Your password and files never leave your browser.
Encrypted locally on your device. No document uploads.
HOW IT WORKS

Password protect your PDF in three easy steps

Instant client-side encryption ensures absolute privacy for every confidential document.

01

Choose a PDF

Select any standard PDF document up to 20 MB from your device or drop it into the upload box.

02

Set Your Password

Type your secure password with optional confirmation. Choose between modern AES-256 or legacy RC4 encryption.

03

Download Protected PDF

Your document is encrypted locally in your browser memory. Save the protected PDF with password restrictions applied.