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Home › PDF Tools › Protect PDF

🔒 Protect PDF

Add a password to any PDF file to prevent unauthorised access. The entire process runs in your browser — your file is never uploaded to any server.

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Upload PDF

🔒

Click to upload or drag and drop your PDF

Max 200MB · Your file never leaves your device

Choose a strong password — you will need this to open the PDF later.

Encrypting your PDF…

✅ PDF protected successfully!
🔒 protected.pdf

How to use

  1. 1Click Upload PDF or drag your PDF into the box
  2. 2Enter a strong Password and confirm it in the second field
  3. 3Click Protect PDF — encryption happens instantly in your browser
  4. 4Download the protected PDF — anyone who opens it will need your password
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