Add a watermark to PDF pages

A PDF watermark makes it clear that a document is confidential, a draft, an internal copy, or part of a review workflow. This tool adds the watermark to every page and creates a new downloadable PDF.

You can set the watermark text, adjust transparency, choose a readable size, and angle the mark across the page. The thumbnail preview helps you check the overall placement before creating the final file.

The process runs in the browser, so the PDF does not need to be uploaded just to add a simple text watermark.