Watermark PDF
Add a text watermark across your PDF pages — angle, opacity and tiling.
Stamp text like "CONFIDENTIAL" or "DRAFT" over every page. Set the angle, opacity, color and size, centered or tiled across the page. Runs in your browser; your PDF is never uploaded.
Type the watermark text you want (e.g. "CONFIDENTIAL" or "DRAFT"), then pick a centered or tiled layout. Adjust the color, opacity, font size and rotation to get the look you want, then click apply to download a new PDF with the watermark stamped on every page.
Common mistakes
- Setting opacity too high, so the watermark covers the text instead of just marking the page — 20-40% is usually enough to stay legible.
- Using a centered watermark to deter copying — it's easy to crop out of a single page; the tiled layout repeats across the page and is much harder to remove.
- Expecting to skip certain pages — the watermark applies to every page in the file; there's no per-page option.
Frequently asked questions
Can the watermark repeat across the page?
Yes — choose the tiled layout to repeat the text diagonally across the whole page.
What's the difference between centered and tiled watermarks?
Centered places the text once in the middle of each page at your chosen angle. Tiled repeats it in a grid across the whole page, which is harder to crop or edit out.
Can I use a logo or image instead of text?
No — this tool only adds text watermarks. For an image or logo stamp, you'll need a PDF editor with image overlay support.
Can I watermark only some pages, not all of them?
No, the same watermark is applied to every page. To exclude pages, split the PDF first, watermark the pages you need, then merge the files back together.
Does the watermark reduce document quality?
No — the text is drawn directly into the page as vector content, so resolution and image quality are unaffected; the file size grows only slightly.
Privacy
All processing happens locally in your browser. Your data is never uploaded.