PDF Encryption

Features:

• Add password protection to your PDF files
• Password protection, secure encryption
• Uses 128-bit AES encryption for secure and reliable protection
• Ensures PDF integrity using the qpdf tool
• Displays real-time processing progress
• Secure handling; files are not permanently stored

Steps:

1. Select a PDF file
2. Enter a password for encryption
3. Click the "Start Encryption" button
4. Wait for the upload and encryption to complete
5. Click "Download Encrypted File" to get your encrypted PDF

Note:请妥善保管设置的密码，遗失密码将无法打开或编辑PDF文件。 文件仅临时存储在服务器上，处理完成后会自动清理。

Tip:建议使用强密码，包含字母、数字和特殊字符的组合。