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How to Add a Watermark to a PDF

A watermark — like "CONFIDENTIAL" or "DRAFT" stamped diagonally across every page — protects your documents and signals their status at a glance. Here is how to add a text watermark to a PDF online for free.

Open the Watermark PDF tool →

Step by step

  1. Open the Watermark PDF tool.
  2. Upload the PDF you want to mark.
  3. Type the watermark text you want to show.
  4. Click to apply it and download the watermarked PDF.

Tips

The watermark is added semi-transparently across every page so it is visible without hiding your content. This is great for sharing drafts, marking proprietary material, or labelling copies. The tool runs in your browser, keeping your document private.

Frequently asked questions

Will the watermark cover my text?
No — it is semi-transparent and sits over every page without obscuring the content.

Is it added to every page?
Yes, the watermark is applied to all pages of the PDF.

Try it now

Ready to go? Open the free Watermark PDF tool — no signup, no watermark, and your files stay private. Browse all 140 free tools or read more on the blog.