PDF Password Protector
Secure your PDF files with strong password protection. All processing happens in your browser for maximum privacy.
PDF Password Protector
Drag & Drop PDF Files Here
or click to browse your files
Your Files Are Secure
Password protection uses client-side encryption. Your files are never uploaded to any server and are processed entirely in your browser.
Bank-Level Security
AES-256 encryption ensures your PDFs are protected with the highest security standards
Client-Side Processing
All processing happens in your browser. Your files never leave your computer
Fast Processing
Protect multiple PDF files simultaneously with our efficient processing engine
Cross-Platform
Works on all devices and browsers with no installation required
Frequently Asked Questions
Find answers to common questions about PDF Password Protector
Yes, our PDF Password Protector is completely free to use. There are no hidden charges, registration requirements, or limitations on usage.
All processing happens directly in your browser using client-side encryption. Your PDF files are never uploaded to any server, ensuring complete privacy and security. We use AES-256 encryption, the same standard used by banks and governments.
You can protect PDF files up to 50MB in size. For larger files, we recommend breaking them into smaller parts or using our server-side processing option (coming soon).
Yes, our tool supports batch processing. You can upload multiple PDF files and protect them all with the same password in one operation.
We do not store any passwords, so if you forget the password for a protected PDF, we cannot recover it for you. We recommend keeping a secure record of your passwords.
No, your original PDF files remain untouched. All encryption is applied to copies that you can download. Your original files stay exactly as they were.