PDF Encrypt
Password protect PDF with permission settings. Uses AES-256 algorithm. All operations are done locally.
Upload PDF
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Upload PDF File
PDF format supported
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Result
📄
Encrypted PDF will appear here
Waiting for process...
LOCAL All operations are performed locally in the browser and no data will be uploaded.

What is PDF Encrypt?

Protect PDF documents with password to prevent unauthorized access and modification, ensuring document security.

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Core Benefits

  • Password protect PDF documents
  • Support fine-grained permission settings
  • Use high-strength encryption
  • Local processing, protect privacy
⚡

Features

  • Support AES-256 high-strength encryption
  • Support printing and copying permissions
  • Preview encryption results
  • Pure frontend processing
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Use Cases

  • Protect confidential documents
  • Restrict access to sensitive documents
  • Prevent unauthorized modification
  • Securely send important documents
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Technical Advantages

  • Supports AES-256 and RC4 algorithms
  • Supports standard PDF permission control
  • Keeps original format intact
  • Supports all major browsers

🚀 How to Use

  • Upload PDF: Click or drag file.
  • Set Password: Enter open password.
  • Set Permissions: Optional settings.
  • Start Encrypt: Click "Execute".
  • Preview & Download: Preview results.

💡 FAQ

What if I forget the encrypted PDF password?
Our encryption is local with no cloud backup. Please keep your password safe.
What's the difference between AES-256 and RC4?
AES-256 is more secure, recommended. RC4 has better compatibility with older software.

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