PDFnite

Lock PDF

Set a password on your PDF to protect it

Files are processed in your browser — no server upload

Drag & drop PDF files here

or click to browse

How to lock a PDF

  1. 1

    Upload your PDF file.

  2. 2

    Enter a password twice to confirm.

  3. 3

    Click “Set Password” and download the protected PDF.

When is this useful?

  • Sending confidential documents via email
  • Protecting PDFs shared outside your organization
  • Restricting access to PDFs with personal information

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