PDF Boost AI
StampOn-device

Watermark a PDF

CONFIDENTIAL, DRAFT, or your own line — across every page, with opacity, rotation, and placement you control.

  • No upload
  • No account
  • Runs in this tab

Drop a file here

One file at a time. Processed in this tab — nothing is uploaded.

Free: 3 pages per file · 2 AI runs a day. Pro is $5.95/mo for 80 pages and 60 AI runs.

  1. 01

    Drop the PDF.

  2. 02

    Set the text, opacity, angle, and placement: Center, Header, Footer, or Tile.

  3. 03

    Download the stamped copy.

A quiet stamp, not a shout

A watermark is a reminder, not security. It does not encrypt the file. Use it so a draft cannot be mistaken for the final, or so a packet is obviously internal.

Questions

Can I use an image logo?
Text only in this version. Keep it short so it stays readable at an angle.
Where can I place the watermark?
Choose Center for one prominent stamp, Header or Footer for an edge label, or Tile to repeat the text across each page.

How-to

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.

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