Watermark PDF online

Stamp text across pages, tiled or single.

100% FreeNo SignupNo WatermarkNo Daily LimitsClear Privacy

No artificial upload quota: processing happens on your device, so the practical limit is your browser and available memory.

Start here

Add your PDF

Choose from your device or drag it onto the upload surface.

  • Free
  • No signup
  • Processed on device

Choose a PDFPDF · drag and drop also works

About this Watermark PDF workflow

What it does

Add a text watermark to a PDF — DRAFT, CONFIDENTIAL, or your own wording. Control colour, size, angle and opacity. Free and browser-based.

Processing model

This focused tool processes the selected document in your browser. The source file is not overwritten.

Good practice

Keep the original file and inspect the downloaded result before replacing an archival, signed, submitted or legally important copy.

How Watermark PDF works in FileCarpenter

Add a text watermark to a PDF — DRAFT, CONFIDENTIAL, or your own wording. Control colour, size, angle and opacity. Free and browser-based.

The focused PDF Tools workspace is designed for a single job at a time. It does not require an account and does not add a FileCarpenter watermark to the downloaded result.

Good to know

Can the watermark be removed?

A determined person can remove almost any visible watermark. Treat it as a clear marking of intent, not as protection.

Can I use an image instead of text?

Not on this tool yet — use Sign PDF, which places an image anywhere on the page.