WEBTOOLBAZAR

PDF Locker - Password Protect PDF

Add a password to your PDF file to keep it secure. Choose AES-128 or AES-256 encryption – everything is processed privately in your browser.

PDF Locker Encrypt PDF Password Protect AES Encryption

Drop your PDF here

or click to select a PDF file

What is the PDF Locker Tool?

The Web tool Bazar PDF Locker adds a password to your existing PDF files, encrypting them with industry‑standard AES encryption. Once locked, the PDF can only be opened or viewed by entering the correct password. This tool is perfect for protecting sensitive documents like contracts, invoices, or personal records. All encryption happens directly in your browser, so your files never leave your device.

How to password protect a PDF

1

Upload your PDF

Drag & drop a PDF file or click "Select PDF".

2

Set a password

Enter a strong password and confirm it. Choose AES-128 or AES-256 encryption.

3

Encrypt & Download

Click "Encrypt PDF" and then download the password-protected file.

Frequently Asked Questions

What happens if I forget my password?
Unfortunately, there is no way to recover a lost password. Keep it safe and memorable.
Which encryption level should I choose?
AES-256 is the most secure option and recommended for sensitive documents. AES-128 is faster and still very secure.
Is my PDF file uploaded to a server?
No. All encryption runs locally in your browser. Your file is never sent anywhere.

Quality guide

Pdf Locker: useful guide, safe workflow, and quality checks

Pdf Locker helps you finish a practical browser task with a clear result. It is designed for a focused document workflow, so the page should be useful even if you arrive directly from search and only need this one task.

A reliable document workflow is about control: know what goes in, choose the right output, and confirm the final file before you share it. This page is written for everyday users who need a clean result for school, business, client work, or personal records.

Best uses

  • save time on routine file or content work
  • avoid installing single-purpose software
  • produce a shareable result quickly

Before you finish

  • check the input before processing
  • review the output before using it
  • keep a backup when the result matters

Recommended workflow

  1. start with default options
  2. adjust settings only when needed
  3. download or copy the final result after review

Privacy and user experience notes

Only use files and text that you have permission to process. Avoid adding passwords, private keys, personal records, or confidential client material unless the task truly requires it. On shared devices, clear the page after finishing and keep your downloaded result in a safe folder.

Frequently asked questions

Is Pdf Locker enough for professional work? Yes. The tool is suitable for routine tasks as long as you review the result and keep originals for important files or published work.

What should I review before using the result? Check the final file or text at normal viewing size, confirm the name and format, and make sure it solves the task you started with.