Add Text Watermark to PDF

Stamp every page with text like “CONFIDENTIAL” or “INTERNAL USE ONLY” — tiled across the page or centered, with light / standard / dark opacity. Runs locally in your browser; your file is never uploaded.

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Files are processed locally in your browser — never uploaded to any server

Any text incl. CJK charactersTiled or centered layoutProcessed locally — never uploadedNo forced site branding

Full-release pricing preview: $6.9/mo or $49/yr · 30-day email notice before billing starts · nothing is charged during the beta

How it works (3 steps)

Upload the PDF

Select or drag in the PDF you want to watermark.

Enter the watermark text

Choose tiled or centered layout and light / standard / dark opacity.

Download the result

Every page gets a uniform diagonal watermark in a new PDF.

FAQ

Does non-Latin text work?

Yes. The watermark text is rendered in your browser as a high-resolution transparent image before embedding, so any script works.

Will the watermark obscure the content?

The default “standard” level is 15% opacity and stays readable; pick “light” or “dark” to adjust.

Can you remove someone else’s watermark?

No — and we are honest about that. This tool only adds watermarks; we do not offer watermark removal.

Is my file uploaded?

No. Watermarking runs entirely in your browser.