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Add Watermark to PDF — Free

Mark drafts, protect confidential files, or brand client documents with PdfWord's free Watermark tool — your text stamped diagonally across every page.

Unlike most online converters, PdfWord processes your files entirely in your browser — nothing is ever uploaded to a server. There are no accounts, no daily limits, no watermarks, and every tool is free forever.

Add Watermark to PDF — Free

Stamp text like CONFIDENTIAL, DRAFT, or your brand name diagonally across every page.

Drop a PDF file hereor click to browse

How to watermark a PDF: type your watermark text, upload the PDF, and get every page stamped with a light diagonal mark. Watermarks protect drafts, mark confidential files, and brand documents you share with clients.

How to watermark a PDF

  1. Open the Watermark PDF tool
  2. Type your watermark text
  3. Upload your PDF
  4. Click Add Watermark and download

Frequently asked questions

Can I use my brand name?

Yes — any text up to 40 characters works as a watermark.

Will it hide my content?

No — the watermark is light and semi-transparent.

Try Watermark PDF Now — Free →