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100% free PDF tool

Watermark PDF

Stamp DRAFT, CONFIDENTIAL or any text diagonally across every page.

  • No sign-up required
  • Instant results
  • Nothing is uploaded
  • Works on any device

or drop them here

Your files are private. Everything happens in your browser. Your files never leave your device.

  • 100% freeNo hidden charges, no watermark
  • Instant resultsDone in seconds, no queue
  • Secure & privateNothing is uploaded
  • Works on all devicesDesktop, tablet and mobile

How to use the Watermark PDF

  1. 1Choose your PDF - drag it onto the box or tap the button.
  2. 2Pick the pages or options you need.
  3. 3Download the finished file. Nothing is added to it.

About the Watermark PDF

Lays a diagonal text watermark - DRAFT, CONFIDENTIAL, a client's name - across the middle of each page, with control over how faint, how large and at what angle. The watermark is real PDF text drawn under your control, not a picture pasted on top, so the file stays small and the pages stay sharp.

Add a text watermark to a PDF

Type the watermark - DRAFT, CONFIDENTIAL, SAMPLE or a client's name - and set how faint, how large and at what angle it runs across each page. The watermark is real PDF text drawn on the page, not a picture pasted on top, so the file stays small and the pages stay sharp.

Good to know

  • 15-25% opacity marks every page clearly without making the content hard to read.
  • A watermark discourages sharing; it does not stop copying. To restrict opening the file, add a password with Protect PDF.
  • To remove sensitive text for good rather than mark it, use Redact PDF.

Frequently asked questions

What opacity should I use?+

Around 15% is the usual choice: clearly visible, but the document underneath still reads comfortably. Push it higher only when the watermark matters more than the text.

Can the watermark be removed by whoever receives it?+

Yes, by anyone with a PDF editor - it is drawn into the page, not locked to it. A watermark marks a document's status; it does not secure it.

Can I use my logo instead of text?+

Not in this tool - it stamps text only. For an image watermark, place the logo in your source document before exporting to PDF.

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