Upload a PDF, design the watermark, see exactly what you will get, then download. Everything runs in your browser — nothing is uploaded.
1
Upload a PDF
.pdf
2
Design the watermark
Preview of page 1 — applies to all 0 pages.
3
Download
Common questions
Can I use my own logo instead of text?
Yes — upload a PNG (transparency works best) and it is stamped on every page at the size and position you choose, same as the text option.
Does the preview actually show what I will get?
Yes — the preview renders your actual first page with the watermark applied at the real opacity, size, and position, so what you see is what downloads, just repeated across every page.
Can I control how visible the watermark is?
Yes — the opacity slider goes from very subtle to fully solid.