Protect PDF
Add a password and permissions to your PDF — encrypted entirely in your browser. Nothing is ever uploaded.
Click to select or drop your PDF here
Single PDF file supported
Select PDF
AES-256 encryption
No file uploads
Password never leaves your device
PDF settings
Document info
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File size
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Pages
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PDF version
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Status
This PDF is already password-protected. Please unlock it first before applying a new password.
Password required
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Passwords do not match.
Password generator
Encryption strength
Recommended — strongest, PDF 2.0 standard.
Owner password optional
Controls who can change permissions later. If left blank, a random one is generated so your permission choices are actually enforced.
Password hint optional
For your own reference only — never saved into the PDF or sent anywhere.