Watermark PDFs in your browser

Upload your document, customize the watermark, and keep every step on your device.

Drag & drop your PDF or click to browse Max file size: 50 MB

— Upload a PDF to begin

Processing stays on your device
GDPR compliant by design
No accounts or file retention

1 Upload PDF

2 Customize watermark

3 Preview & download

Adjust your watermark text, color, and placement.

Current PDF

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Watermark text

0 / 140

Repeat watermark across page Fill the page with repeated text

Style

Font Size

Opacity

35%

Advanced placement & tiling

Page range (e.g. 1-3,5) Rotation (°)

Offsets (pt)

X Y

Add your watermark settings, then preview to see the result.

Frequently Asked Questions

Is it really safe to use this tool?

Yes, it's completely safe. All processing is done locally in your browser. Your PDF files never leave your device and the code is open source so anyone can verify its security.

Why is it free?

We believe identity protection should be accessible to everyone. Since it's a tool that runs completely in the browser, maintenance costs are minimal.

Does it work offline?

Yes, once you load the page for the first time. All features will remain available.

Which browsers are supported?

The tool is compatible with recent versions of Chrome, Firefox, Safari, and Edge. We recommend keeping your browser updated for the best performance.

How do I know my data is secure?

The code is completely open source and verifiable in our GitHub repository. All processing is done on your device without sending data to servers.