Watermark
Stamp every page of a PDF with a text watermark like "DRAFT" or "CONFIDENTIAL," or place your own logo image. Set the size, color, opacity, rotation, and position, and check the live preview before downloading. The whole thing — including the preview — runs locally in your browser with pdf-lib.
- Free — no sign-up
- Private — runs in your browser
- Instant results
How to use the Watermark
- 1Upload your PDF. Choose a text or image watermark.
- 2Set the style. Adjust size, color or scale, opacity, rotation, and position, and watch the live preview.
- 3Download. The watermark is applied to every page in the finished PDF.
Frequently asked questions
Can I use my own logo instead of text?
Yes. Switch to "image watermark" and upload a PNG or JPG — it's placed and scaled the same way a text watermark would be.
Will the watermark cover up my content?
Lower the opacity slider to keep it subtle, or place it in a corner instead of the center so it doesn't sit over body text.
Is my PDF or logo uploaded anywhere?
No. Watermarking, including the live preview, happens entirely in your browser.
Learn more
Text vs. image watermarks, how to get the opacity and position right, and a step-by-step workflow for stamping a PDF.
How to number PDF pages that don't have them, using the {n}/{total} format template and a custom starting number.