Watermark PDF
Add a PDF, set your watermark text, and it's stamped diagonally across every page. Preview updates live on page 1. Everything happens in your browser.
Click to choose a PDF, or drag & drop it here
How to add a watermark to a PDF
Upload a PDF, type your watermark text (or upload a logo), adjust the opacity and position, and this free watermark PDF tool stamps it across every page before you download the result. Useful for marking drafts, adding a 'confidential' stamp, or branding shared documents. Everything is processed locally in your browser.