PDF Boost AI

Edit · August 13, 2026 · 4 min

How to watermark a PDF as Draft or Confidential

Stamp every page with a word you choose — opacity, rotation, and placement included — without an upload.

Open Watermark PDF
  1. 01

    Open Watermark PDF and drop the file.

  2. 02

    Enter the stamp (Draft, Confidential, or your own word).

  3. 03

    Set opacity and rotation, then choose Center, Header, Footer, or Tile placement.

  4. 04

    Download the marked copy. Keep an unmarked original if you still need one.

A watermark is a social signal, not a lock. It stops accidental forwarding more than determined copying. Use it anyway — people behave better when the page says Draft.

Keep a clean original

Once you stamp, you cannot politely unstamp. File the unmarked version first.

Readable, not screaming

High opacity fights the text. Center makes one prominent stamp; Header and Footer keep it near an edge; Tile repeats it across the page. Start light, then choose the placement that stays readable without hiding the document.

Try it

Watermark PDF

Stamp text across pages. Files stay in this tab.

Open the tool