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PDF Protector

PDF ToolsFree Tool

Add password protection and encryption to PDF files.

Note: Full PDF encryption requires backend processing
This tool saves the PDF with protection metadata. For full encryption with password protection, please use a dedicated PDF encryption service or backend API.

About PDF Protector

Protect your PDF files with password encryption. Set user password (to open) and owner password (to edit). Choose encryption level (128-bit or 256-bit AES). Prevent copying, printing, or modification of your documents.

How to Use PDF Protector

  1. Upload your PDF file.
  2. Set a user password (to open the file).
  3. Optionally set an owner password (to edit).
  4. Choose encryption level.
  5. Click 'Protect PDF' and download.

Key Features

User and owner passwords
128-bit and 256-bit encryption
Disable printing option
Disable copying option
Disable editing option

Common Use Cases

  • Protect confidential documents
  • Prevent unauthorized editing
  • Secure sensitive PDFs
  • Control document access

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Reduce PDF file size without losing quality.
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Frequently Asked Questions

Is PDF Protector free to use?
Yes, PDF Protector is completely free to use. No registration, subscription, or payment is required.
Is my data safe when using PDF Protector?
Absolutely. All processing happens directly in your browser. Your files and data are never uploaded to our servers, ensuring complete privacy.
Are there any file size limits?
There are no strict file size limits imposed by our tool. However, very large files may take longer to process depending on your device's performance.
Can I use PDF Protector on mobile?
Yes, PDF Protector is fully responsive and works on all devices including smartphones and tablets.
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