BoostPDF

Encrypt PDF Online Free

Protect your PDF documents with strong password encryption. Secure your sensitive files without installing any software.

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Select PDF File to Encrypt

Choose a PDF document to password protect

PDF Encryption Security Features

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AES-256 Encryption

Military-grade encryption standard used by governments worldwide

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Custom Passwords

Set your own strong password for maximum security control

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Permission Control

Control who can print, copy, or edit your documents

How to Encrypt PDF Files

1

Upload PDF

Select your PDF file that needs encryption

2

Set Password

Create a strong password and choose permissions

3

Download Secure PDF

Get your password-protected PDF file

Strong Password Guidelines

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Use 12+ Characters

Longer passwords are exponentially harder to crack

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Mix Character Types

Combine uppercase, lowercase, numbers, and symbols

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Avoid Common Words

Don't use dictionary words or personal information

Free PDF Encryption Benefits

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Completely Free

No subscription fees or hidden costs - encrypt unlimited PDFs

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Browser-Based Security

Your files are encrypted locally in your browser for maximum privacy

Instant Encryption

Protect your PDFs in seconds without waiting or delays

When to Encrypt PDF Files

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Business Documents

Financial reports, contracts, and confidential business information

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Medical Records

Patient information and medical documents requiring HIPAA compliance

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Legal Documents

Court filings, attorney-client privileged communications, and legal contracts

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Personal Finance

Tax returns, bank statements, and investment portfolios

Encryption Standards We Use

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AES-256 Encryption

Advanced Encryption Standard (AES), widely used for securing sensitive data

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PDF Security Standard

Follows official PDF security specifications for maximum compatibility

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Industry Compliance

Meets requirements for GDPR, HIPAA, and other data protection regulations

Ready to Secure Your PDF?

Start encrypting your PDF documents for free right now