This free tool adds a text watermark to every page of your PDF, right in your browser. Upload a PDF, type your watermark text, choose the opacity and download the marked file.

Quick facts

• Input: one PDF file
• Watermark: your own text, placed on every page
• Opacity: from 0.1 (very faint) to 1.0 (solid)
• Output: a new PDF with the watermark
• Cost: free, no sign-up

How to use the PDF watermark tool

1. Upload your PDF.
2. Type your watermark text, for example CONFIDENTIAL or your name.
3. Set the opacity between 0.1 and 1.0.
4. Press Apply & Download.

Good uses

Mark documents as draft or confidential, add your name or brand to a sample, or discourage casual reuse of a PDF you share.

Good to know

• The watermark is added to all pages with a fixed text size.
• A watermark discourages copying but cannot fully prevent it.
• Keep your original file, since the download is a new PDF.
• To restrict opening or editing, also try protecting the PDF.

Privacy

Your PDF is processed in your browser and is not uploaded to our server.