Can I make the watermark semi-transparent?

Yes, adjust opacity from 0% (invisible) to 100% (fully opaque).

Will the watermark be removable?

Watermarks are embedded in the page content and cannot be easily removed without specialist tools.

Watermark PDF

Protect and brand your PDF documents with custom watermarks. Add any text (like "CONFIDENTIAL" or your company name) or an image logo, control the opacity and angle, and apply it uniformly across all pages in seconds.

Text watermarksImage watermarksControl opacityCustom rotation angleFont size and colourApply to all or select pagesNo server uploadFree and unlimited

100% Privacy

Files stay strictly on your device. Zero server uploads.

Instant Speed

Local browser WebAssembly & JS processing engine.

Free Forever

Unlimited usage with no hidden fees or watermarks.

How to Watermark a PDF

Upload PDF

Upload the PDF to watermark.

Choose Type

Select Text or Image watermark.

Customise

Set text, font, colour, opacity, and position.

Download

Download your watermarked PDF.

Add custom text or image watermarks to PDF files online for free. Control opacity, position, rotation, and colour. Browser-based, instant download. ## Introduction Protect and brand your PDF documents with custom watermarks. Add any text (like "CONFIDENTIAL" or your company name) or an image logo, control the opacity and angle, and apply it uniformly across all pages in seconds. ## Features - Text watermarks - Image watermarks - Control opacity - Custom rotation angle - Font size and colour - Apply to all or select pages - No server upload - Free and unlimited ## Benefits - Fast, client‑side processing - No data leaves the browser - Free and unlimited usage - High‑quality results ## Call to Action Start using Watermark PDF now – it’s completely free and works instantly in your browser.

Frequently Asked Questions

Yes, upload a PNG or JPG logo to use as an image watermark.

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