PDF Watermark

Use this to stamp "CONFIDENTIAL", "DRAFT", "SAMPLE" or your company logo across PDF pages.

Free to download, install and update. No signup; all 76 tools are free within daily limits, Pro only lifts the limits.

PDF Watermark running in BulkPro on Windows
BulkPro, running locally on Windows

What it does

Use this to stamp "CONFIDENTIAL", "DRAFT", "SAMPLE" or your company logo across PDF pages. It deters unauthorised sharing, asserts copyright, and helps you tell drafts from final versions.

How to use it

  1. 1Drag PDFs into the list.
  2. 2Pick a Watermark Type: Text or Image / Logo.
  3. 3For Text, type the words (e.g. CONFIDENTIAL), pick a colour, decide if you want bold.
  4. 4For Image, click Select Logo and pick a PNG/JPG file.
  5. 5Set Opacity, Position, Size and Rotation.
  6. 6Click Run.

Use cases

CONFIDENTIAL stamps on contracts

Add the PDFs, text CONFIDENTIAL, colour red, opacity 25%, position Center, rotation 45°. Classic confidential look.

Logo on a draft report

Add the report, pick Image, choose your logo, opacity 40%, position Top Right, size 80.

Copyright pattern over every page

Add the PDF, text © Your Company 2026, opacity 15%, position Tile, size 40.

E-signature on the bottom corner

Add the PDF, pick Image, choose your signature image, opacity 100%, position Bottom Right, size 30.

Frequently asked questions

Is PDF Watermark free?

Yes. Downloading, installing and updating BulkPro is free and requires no signup. All 76 tools work for free within daily usage limits; Pro plans only lift the daily limits of the modules you pick.

Local processing

Runs on your CPU/GPU. No file leaves your machine.

Batch ready

Process dozens or thousands of files in one run.

Part of BulkPro

Bundled with 76 tools across 7 modules: one install, one app.

Detailed documentation

Full UI reference, step-by-step workflows, edge cases

Every input, button, and behavior documented for advanced users.

Open documentation