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Add Password to PDF

Protect your sensitive PDF documents with strong password encryption. Prevent unauthorized access and keep your confidential files secure. Simple, free, and completely private.

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AES-256 Encryption
No Watermarks
Local Processing

How to Add Password to PDF

1

Upload Your PDF

Drag and drop your PDF file or click to browse. Your document loads instantly in the browser.

2

Set Your Password

Enter a strong password. Optionally set permissions for printing, copying, and editing.

3

Download Protected PDF

Save your encrypted document. Anyone opening it will need to enter the password.

PDF Password Protection Features

Strong AES-256 Encryption

Industry-standard encryption used by governments and banks. Virtually unbreakable with a strong password.

Open Password

Require a password to open and view the document. Without it, the file remains inaccessible.

Permission Controls

Optionally restrict printing, copying text, and editing even after the file is opened.

Owner Password

Set a separate owner password to control permissions while allowing viewing with a user password.

Universal Compatibility

Protected PDFs work in Adobe Reader, Preview, Chrome, and all standard PDF applications.

Prevent Unauthorized Access

Share confidential documents via email or cloud knowing only authorized recipients can open them.

Local Encryption

All encryption happens in your browser. Your files and passwords never leave your device.

No Size Limits

Protect PDFs of any size. Encryption is fast and efficient for documents of all lengths.

Who Uses PDF Password Protection?

Business Professionals

Protect financial reports, contracts, and confidential business documents before sharing.

Healthcare Providers

Secure patient records and medical documents to comply with privacy regulations.

Legal Professionals

Protect sensitive legal documents, contracts, and client communications.

Individuals

Secure personal documents like tax returns, IDs, and financial statements.

Frequently Asked Questions

How do I add a password to my PDF?

Upload your PDF, enter your desired password in the password field, optionally set permissions, and download the protected file.

What's the difference between user and owner passwords?

User password is required to open the file. Owner password controls permissions (printing, copying) and can modify or remove protection.

How secure is the encryption?

We use AES-256 encryption, the same standard used by governments worldwide. With a strong password, your document is extremely secure.

What if I forget my password?

Passwords cannot be recovered - that's what makes encryption secure. Always store your password safely, ideally in a password manager.

Can I prevent printing or copying?

Yes, you can restrict printing, copying text, and editing even for users who know the open password.

Will the protected PDF work everywhere?

Yes, password-protected PDFs are a standard feature supported by Adobe Reader, Preview, Chrome, and all major PDF applications.

What makes a strong password?

Use at least 12 characters with a mix of upper/lowercase letters, numbers, and symbols. Avoid common words or personal information.

Can I protect multiple PDFs at once?

Currently, you can protect one PDF at a time. For multiple files, repeat the process with each document.

Is my password stored anywhere?

No. Encryption happens entirely in your browser. We never see, transmit, or store your password.

Can I change the password later?

You would need to remove the existing protection (with the current password) and add a new password.

Ready to Protect Your PDF?

Add password protection and keep your sensitive documents secure for free.

Start Protecting Now