Watermark PDF
PDF → PDFStamp text across every page — DRAFT, CONFIDENTIAL, a file number.
1 · PDF
Is this PDF password-protected?
Used once, in this tab, to decrypt the file. It is never sent anywhere.
2 · Watermark
52 pt
18%
A watermark sits on top of the page. Anyone can remove it with the same kind of tool, so treat it as a label rather than protection.
3 · Result
About Watermark PDF
A document that is circulating before it is final should say so on every page. Stamp DRAFT, CONFIDENTIAL, an internal file number or a client name across the pages, diagonally or tiled, at an opacity that stays readable without burying the text underneath.
How it works
- 1Pick a PDF.
- 2Type the text and set the placement, size, opacity and colour.
- 3Press Add watermark and download the stamped document.
Questions
- Does a watermark stop anyone copying the document?
- No. It sits on top of the page as ordinary content and can be removed with the same class of tool that added it. Use it as a label that travels with the document, not as protection. If you need protection, use Protect PDF.
- What opacity should I use?
- Around 15–25% for a large diagonal stamp: clearly visible, still readable through. Go higher for small header or footer text, where it needs to be legible in its own right.
- Can I use an image or logo as the watermark?
- Not in this tool — text only. For a logo, place the image on the page in your source document before converting it to PDF.
- Will it work on pages that are rotated?
- Yes. The stamp is positioned in the page’s visible orientation, so it appears upright and centred on sideways scans as well as normal pages.
- Which characters can I use?
- The watermark uses a built-in PDF font, which covers the Latin alphabet, digits and common punctuation. Characters outside that — Arabic, Chinese, Cyrillic — are dropped rather than breaking the conversion.
Next you might need
This page does the work itself, in this tab. Nothing about your file — not its name, not its contents — is sent to a server. Close the tab and no copy remains.