Add Watermark to PDF
Stamp confidential, draft or custom text across every page
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Watermarks discourage unauthorised sharing and make the status of a document obvious. This tool writes a diagonal text watermark onto each page with adjustable opacity.
How to watermark a PDF
- Upload the PDF.
- Type the watermark text - for example CONFIDENTIAL, DRAFT or your company name.
- Pick an opacity, convert and download.
Good practice
- Use 20-40% opacity so the underlying text stays readable.
- Keep the watermark short for a clean look.
- Combine with encryption when the document is sensitive.
Frequently asked questions
Can the watermark be removed?
It is written into the page content, so removing it is not trivial - but no watermark is truly tamper-proof.
Can I watermark only some pages?
This version applies the watermark to every page.
Does it work with scanned PDFs?
Yes, the watermark is layered on top of the page image.