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Kliimora PDF

Protect PDF

Add a password to a PDF to protect its contents.

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The owner password controls permissions (print, edit, copy). If left empty, it will match the user password.

This password will be required to open the PDF. Minimum 4 characters. 128-bit encryption, runs 100% in your browser.

Protect PDF — Add a Password to Your PDF

Protect PDFs before emailing or uploading to the cloud. Add a password so only the intended recipient can open it.

  • User password (to open)
  • Works in all modern readers
  • No upload — private
  • Fast & free

How it works

  1. 1

    Upload your PDF

    Pick the PDF to lock.

  2. 2

    Set a password

    Choose a strong password — at least 8 characters mixing letters, digits, symbols.

  3. 3

    Download the encrypted PDF

    The new PDF asks for the password every time it opens.

Use cases

Contracts & legal

Add a password before sending contracts to outside parties.

Financial data

Protect internal financial reports before sharing.

Personal documents

ID cards, tax IDs, identity documents — always password-protect before sharing.

Frequently asked questions