ToolNest

Watermark PDF

Add a text watermark, tiled or centeredRuns locally · nothing uploaded

Choose a PDF fileClick or drop PDFs here. Files stay on your device.
Also works as:add watermark to pdfconfidential watermark pdf

How to use

  1. 1Choose a PDF file.
  2. 2Enter the watermark text and choose tiled or centered.
  3. 3Adjust size, angle and opacity, then download.

FAQ

Can the watermark be removed?

It's drawn on each page as an image, which deters casual removal, but it isn't encryption.

Does it support non-Latin text?

Yes. The text is rendered with your system fonts, so Chinese, Japanese and other scripts work.

Are my PDFs uploaded?

No. Files are processed by JavaScript in your browser and never sent to a server, so it's safe for contracts and other sensitive documents.