LocalPDFTools

Add Watermark to PDF

Type the watermark text you need — DRAFT, CONFIDENTIAL, your company name — set the opacity and angle, and apply it across every page.

100% private — your files never leave your device
Drop a PDF here, or click to browse
We'll stamp your text across every page.

Frequently asked questions

Can I control how visible the watermark is?
Yes — an opacity slider lets you go from a faint background stamp to a bold, fully opaque label.
Is the watermark removable by whoever receives the file?
It's drawn directly onto the page content, so it's not a toggleable layer — removing it would require manually editing the PDF.

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