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Encrypt PDF

Add AES-256 passwords and reader-enforced document permissions.

What to expect

Permissions are enforced by compliant PDF readers and are not digital-rights management.

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ALPHAPDF PRO

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Keep the fast visual editor, plus advanced conversion, OCR, security, and certificate signing.

Advanced PDF conversions OCR and table extraction Certificate signing Cancel any time
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The device allowance is essential and cannot be disabled without deleting your AlphaPDF data. Optional uses are controlled separately.

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