Lock PDF & Add Password

Secure your PDF files with strong password encryption. All processing is done securely in your browser.

Choose PDFs

Choose PDF Files

• Supports multiple PDF files

• Maximum 50MB per file

User Password (to open PDF)

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Confirm User Password

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Owner Password (for permissions)

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If only Owner Password is set, PDF opens without password but permissions are restricted.

Encryption Level

Allow Printing

Allow Copying Content

Allow Modifying Document

Allow Adding Annotations/Forms

Permissions are only effective if an Owner Password is set.