Free Add Watermark to PDF

Stamp a text watermark diagonally across every PDF page.

Loading tool…
  • 🔒 Files never leave your device
  • ⚡ Converted in your browser
  • ✅ No account required

Add Watermark to PDF: The Complete Guide

Protect and brand your documents by stamping a diagonal text watermark across every page. Set your own text and size, then download the watermarked PDF.

How to use the Add Watermark to PDF

  1. Drag and drop your PDF or click to choose it.
  2. Pick any options for this tool.
  3. Process and download your result.

Features

  • Custom watermark text
  • Adjustable font size
  • Applied to every page
  • Private — runs in your browser

Frequently Asked Questions

Can I choose the watermark text?

Yes — type any text (e.g. CONFIDENTIAL, DRAFT, your name) and adjust the size.

Where does it appear?

The watermark is placed diagonally and centered on every page, semi-transparent so content stays readable.

Is it free and private?

Yes. It's completely free with no signup, and your PDF is processed in your browser — nothing is uploaded.

You Might Also Need