Protect PDF
Apply password security to control document access
Drop PDF here
or select a file from your device
Supported: .pdf
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User password is required by this tool. If owner password is blank, user password is reused.
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Security Notes
Use strong passwords for sensitive documents.
Share passwords via a secure channel only.
Losing the password can make the file inaccessible.
How to Protect PDF with Password
Secure your PDF documents with password protection. PdfPeaks encrypts your PDF to prevent unauthorized access.
1) Upload your PDF
Drag and drop your PDF file to protect. Your document stays on our secure servers.
2) Set password
Enter a strong password and confirm it. Choose whether to restrict printing and copying.
3) Download protected PDF
Click "Protect PDF" and download your password-protected, encrypted PDF file.
Supported formats: PDF (.pdf). Tip: Use a mix of letters, numbers, and symbols for a strong password.
Frequently Asked Questions
Yes, our PDF protector is completely free.
You can add a user password (to open) and an owner password (for permissions).
Yes, all files are encrypted and deleted after processing.
Yes, you can restrict printing, copying, and editing.