Free PDF Password Protector - Secure Your Documents
Add strong password protection to PDFs or remove existing passwords. Military-grade encryption keeps your sensitive documents secure.
No signup required • 256-bit encryption • Instant protection
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About PDF Protection
- Password protection encrypts your PDF with industry-standard AES encryption
- Protected PDFs require the correct password to open and view content
- Use strong passwords with a mix of letters, numbers, and symbols
- Store your password safely - it cannot be recovered if lost
- Your files are processed securely and deleted immediately after processing
- Supports both adding protection to unprotected PDFs and removing/changing existing passwords
Why Password Protect PDFs?
Confidential Documents
Protect sensitive business documents, contracts, and proposals with password encryption. Ensure only authorized recipients can access confidential information and prevent unauthorized distribution.
Client Files
Secure client documents before sharing via email or cloud storage. Password protection demonstrates professionalism and compliance with data privacy regulations like GDPR and HIPAA.
Financial Records
Protect tax returns, bank statements, and financial reports with encryption. Prevent identity theft and secure sensitive financial data from unauthorized access or data breaches.
Legal Documents
Secure legal contracts, court documents, and attorney-client communications. Password protection ensures document integrity and prevents tampering with legally binding materials.
Personal Privacy
Protect personal documents like resumes, medical records, and identification papers. Keep private information secure when storing in cloud services or sharing with specific recipients.
Frequently Asked Questions
How strong is the password encryption?
We use AES-256 encryption, the same military-grade standard used by governments and financial institutions. This encryption is virtually unbreakable with current technology. Your password is the only way to unlock the PDF once protected.
What if I forget the password?
Unfortunately, there is no way to recover a forgotten password due to the strong encryption. This is by design to ensure security. Always store your passwords safely using a password manager or secure notes system.
Can password-protected PDFs be opened on any device?
Yes, password-protected PDFs use standard PDF encryption that's compatible with all major PDF readers including Adobe Acrobat, Preview (Mac), Chrome, Firefox, and mobile PDF apps. Anyone with the password can open the file.
Does protecting a PDF increase the file size?
No, adding password protection adds minimal overhead (typically less than 1KB). The file size remains essentially the same. If you need to reduce file size, use our PDF Compressor before adding protection.
Can I set different passwords for opening and editing?
Currently, our tool sets a single password for opening the PDF. Once opened with the password, users can view the content. For advanced permission settings, consider using professional PDF software after securing your document.