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How to add a watermark to a PDF

A watermark labels your document and discourages unauthorized reuse. Whether you're marking a draft, stamping CONFIDENTIAL, or branding with your company name, a watermark makes the status clear at a glance.

This guide shows how to add a text watermark to every page of a PDF for free, with full control over appearance.

Open the Watermark PDF tool

Add a watermark to your PDF

Customize the text, size, opacity and rotation, then stamp it across every page.

  1. 1Open the Watermark PDF tool.
  2. 2Drop your PDF or click to select it.
  3. 3Type your watermark text (e.g. CONFIDENTIAL, DRAFT).
  4. 4Adjust font size, opacity, color and rotation angle.
  5. 5Download the watermarked PDF.

Best practices

Keep opacity between 15–30% so the watermark is visible but doesn't hide your content.

Use a diagonal angle (typically 45°) for maximum coverage across each page.

For official documents, use clear, professional text like CONFIDENTIAL or DO NOT DISTRIBUTE.

Frequently asked questions

Ready to try it?

Add a text watermark across every PDF page.

Use Watermark PDF