Free PDF Protection Tool

Add password protection to secure your PDF documents
Protect sensitive information with strong encryption
Easy and secure PDF password protection online

Select PDF File to Protect

Drag PDF file here or click to select

Max 100MB per file

Protection Settings

User Password (Required)

This password will be required to open the PDF

Confirm Password

Owner Password (Optional)

Owner password allows unrestricted access to the PDF

Permission Settings

Allow Printing

Allow Modifying

Allow Copying

Allow Annotating

Encryption Level

128-bit RC4 (Standard)

256-bit AES (High Security)

How to Protect PDF Files

Upload PDF File

Select your PDF document by clicking "Choose File" or drag and drop it. The file will be processed securely in your browser.

Set Passwords

Enter a user password (required to open PDF) and optionally an owner password for full access control.

Configure Permissions

Choose what users can do with the PDF: printing, modifying, copying, and annotating. Select encryption level for security.

Download Protected PDF

Click "Protect PDF" to apply security settings. Download your password-protected PDF with the chosen encryption and permissions.

Protection Tips:

Strong Passwords: Use complex passwords with letters, numbers, and special characters
Remember Passwords: Store passwords securely - lost passwords cannot be recovered
Permission Control: Customize what users can do with your protected PDF
Encryption Levels: Use 256-bit AES for maximum security, 128-bit RC4 for compatibility

PDF Protection Features

Strong Encryption

128-bit RC4 or 256-bit AES encryption for maximum security

Custom Permissions

Control printing, copying, editing, and annotation permissions

Complete Privacy

All processing happens locally - your files never leave your device