PDF Watermark · Free online tool · 100% offline · No data collection Open in App
Loading PDF Watermark...

What is PDF Watermark?

PDF Watermark is a free online developer tool that add text or image watermarks to PDF pages for branding and protection. Like all FluxBench tools, it runs entirely offline in your browser — no data is ever sent to any server.

How to use PDF Watermark

1 Open the PDF Watermark tool on FluxBench
2 Add text or image watermarks to PDF pages for branding and protection
3 Copy or download your result — ready to use

Common use cases

Frequently Asked Questions

Is PDF Watermark free to use?

Yes, PDF Watermark is completely free on FluxBench. No account, no signup, no payment required.

Does PDF Watermark send my data anywhere?

No. All FluxBench tools run 100% offline in your browser. Your data never leaves your device — we have no backend servers.

Can I use PDF Watermark on mobile?

Yes, FluxBench works on any modern browser including mobile. Just open the tool page on your phone or tablet.

Related tools

Explore more free developer tools from FluxBench:

PDF Merge PDF Split PDF Compress PDF Rotate PDF Reorder PDF to JPG