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Add watermark to PDF

Add watermark to PDF: Write a faint diagonal text over the pages. English letters only. Free, no signup, works in your browser.

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About Add watermark to PDF

Write a faint diagonal text over the pages. English letters only. Choose your file, adjust the options if any are shown and press the button.

The work is done in your browser, so it is fast and your files stay on your device.

How to use

  1. Click Choose and select your file.
  2. Adjust the options if any are shown.
  3. Press Start and wait a moment.
  4. Download the result.

Frequently asked questions

What does Add watermark to PDF do?

Write a faint diagonal text over the pages. English letters only.

Does it work on scanned or protected PDFs?

Text based tools need real text in the PDF, so scanned pages (photos of paper) will not give text. Password protected files may not open.

Is this tool free? Do I need to sign up?

Yes. It is completely free and you do not need to create an account.

Is my photo uploaded to a server?

No. The work is done inside your own browser on your phone or computer. Your files are not sent to PixKB.org.