PDF Security Tools
Password-protect, unlock, sign, and redact PDFs. Keep your documents secure with browser-based encryption.
4 free tools — no sign-up, no uploads to servers
Protect PDF
Add password protection and encryption to your PDF files
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Unlock PDF
Remove password and restrictions from protected PDF files
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Redact PDF
Permanently redact sensitive information from PDF documents
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Sign PDF
Add your handwritten signature to PDF documents online
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