Watermark PDF

Watermarks serve as visual indicators of a document's status, ownership, or distribution restrictions. The Add Watermark tool stamps your chosen text onto every page of your PDF at a specified opacity and position — making it immediately clear whether a document is a draft, confidential, for review only, or proprietary to your organisation.

The watermark text is rendered as a semi-transparent overlay directly in the PDF content layer. This means it appears in all viewers, renders when printed, and cannot be removed simply by taking a screenshot (unlike watermarks applied only as a visual layer in some tools). You control opacity from 10% (barely visible) to 80% (prominent).

Position options:

• Center (diagonal): The classic diagonal watermark style, covering the full page. Most recognisable and hardest to ignore.
• Top: Placed at the top of each page, less obstructive to body content.
• Bottom: Footer-style watermark for subtle branding or status marking.

Typical watermark uses:

• "DRAFT" to indicate a document is not yet final
• "CONFIDENTIAL" to restrict distribution of sensitive reports
• "FOR REVIEW ONLY" on external reviewer copies
• Company name for branded document distribution
• "SAMPLE" on preview versions of paid content

Watermarks added by this tool are embedded in the PDF and appear in all PDF viewers and when printed. They are not encrypted — determined users with PDF editing software could potentially remove them. For document security beyond watermarking, combine with password protection. To add sequential page numbers alongside the watermark, use Add Page Numbers as a separate step.

Privacy: Files are uploaded over HTTPS and deleted within one hour. The tool is free with no account required.