Lock shared file
InputConfidential PDF document
Options
password: ****
→OutputAES-256 encrypted PDF
🎯Send files securely via email
Protect PDF
Add AES-256 encrypted password
Drag & drop files here
or click to choose files
How to protect pdf in 3 Steps
1
Upload the PDF file to protect
2
Enter the protection password
3
Click protect and download the locked PDF
About the Password Protect Tool
Password protect PDF online secures your documents with AES-256 encryption. Supports 2 password types: open password (required to view) and permissions password (restricts printing, copying, editing).
🔐
AES-256 Encryption
Military-grade encryption standard, impossible to brute-force crack in any practical timeframe.
🔑
2 Password Types
User password (required to open) and Owner password (controls print/copy/edit permissions).
🚫
6 Permission Controls
Block printing, text copying, editing, annotations, page extraction, and assembly.
📱
Universal Compatibility
Protected files work on all PDF readers: Adobe, Chrome, Foxit, macOS Preview.
🔧
BetaPDF uses AES-256 encryption — the highest encryption standard for PDF, complying with PDF 2.0 specification. The permission flags system controls printing, copying, and editing rights at the security handler level.
🎯
Perfect for: protecting contracts, restricting printing for internal documents, sending sensitive files via email. Before protecting, add a "CONFIDENTIAL" watermark or redact sensitive information. To unlock, use unlock PDF.
💡
Usage Examples
Frequently Asked Questions
Yes — uses AES-256 bit encryption, military-grade security standard.
Cannot be recovered — please remember your password carefully.
Related Tools
Unlock PDF
Remove password from PDF files
Compress PDF
Reduce PDF file size while preserving quality
Merge PDF
Combine multiple PDF files into one
Text Watermark
Add customizable text watermark to PDF files
Redact PDF
Permanently remove sensitive information from PDF by keyword — irreversible
Flatten PDF
Convert forms and annotations to static, uneditable content