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Add Password to PDF

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

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Key Features

Why Password Protect PDFs?

Not every document should be freely accessible. Financial statements, contracts, medical records, business plans, and personal documents often contain sensitive information. Password protection ensures only authorized people can view your files. Share documents via email or cloud storage with confidence knowing that even if intercepted, the content remains secure. It's an essential layer of security for any confidential information.

Frequently Asked Questions

How do I add a password to my PDF?

Upload your PDF, enter the password you want to use, optionally set permissions (printing, copying, etc.), and download the protected PDF. Anyone opening the file will need to enter the password.

What's the difference between user and owner passwords?

The user password (or open password) is needed to view the document. The owner password controls permissions like printing and copying. You can use both or just one depending on your needs.

How secure is the encryption?

We use AES-256 encryption, the same standard used by governments and financial institutions. With a strong password, your document is extremely secure against unauthorized access.

What if I forget the password?

There's no way to recover a forgotten password - that's what makes encryption secure. Always keep your password in a safe place. We recommend using a password manager.

Will the protected PDF work everywhere?

Yes, password-protected PDFs are a standard feature and work in Adobe Reader, Preview, Chrome, and virtually every PDF application. Recipients just need to enter the password to view.

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