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Watermark PDF

Watermark PDF is coming in STORY-061.

The shell for this tool is live, but the processing slice hasn’t shipped yet. Check the related tools below — most users find a working alternative immediately.

About Watermark PDF

Watermark PDF add a text or image watermark. Everything runs locally in your browser — no cloud upload.

The PDF Tools Suite uses Web Workers and open libraries such as pdf-lib and Mozilla PDF.js so your documents stay on your device.

How to use Watermark PDF

  1. 1. Add your file Drag a PDF onto the drop zone or use the file picker.
  2. 2. Configure Adjust tool options if shown, or select pages in the preview grid.
  3. 3. Process and download Click Process, wait for completion, then download your result.

Frequently asked questions

Do my files leave my device when I use Watermark PDF?

No. Processing runs in your browser inside a Web Worker. Files are not uploaded to our servers.

What is the file size limit?

Each file can be up to 50 MB in the browser workspace. Larger files may fail depending on available memory.

How do I get started with Watermark PDF?

Add a text or image watermark Open the tool, add your file, then click Process.