PDF Password Encryption & Security Locker

Secure confidential PDF documents, financial statements, and personal contracts by adding 128-bit/256-bit AES password encryption directly inside your browser.

Key Features

Set strong password protection for PDF document opening
Restrict printing, text copying, and page editing permissions
High security AES 128-bit / 256-bit encryption standard
Fast client-side encryption - files never touch external servers
Instant encrypted PDF download

How to Use PDF Password Locker & Encryptor / Decryptor

Upload the PDF document you want to protect.
Type your secure password in the password field.
Optionally set permission restrictions (Disable Printing / Disable Text Copying).
Click Lock PDF & Download.

Frequently Asked Questions

How secure is the password encryption used here?

We use industry-standard AES encryption wrappers. Without the correct password, opening the encrypted PDF is computationally impossible.

If I forget my password, can it be recovered?

No, encryption is irreversible without the password. Keep a secure record of your password.

Is my un-encrypted PDF file uploaded to cloud servers?

No! Encryption is executed 100% locally inside your web browser instance.

Is this tool free?

Yes, 100% free with unlimited PDF password protection.