PDF Watermarker

Add text or image watermarks to PDFs with position, rotation, opacity and per-page control — fully in your browser.

📄 Drop a PDF here or click to browse One PDF · max 200 MB

What is this PDF watermarker?

Stamps text or image watermark onto PDF pages, with full styling, locally with pdf-lib.

How do I add a watermark to a PDF online without uploading it?

Drop your PDF, choose text or image, set options, click Apply.

Key features

Text or image
Type text or upload PNG/JPG
Seven positions
Center, corners, diagonal, tile
Full styling
Opacity, rotation, color, size
Per-page
All, first, custom range

How to use it

Drop PDF, pick text/image watermark, configure position, opacity, color, size, pages, click Apply.

Frequently asked questions

Uploaded?

No - local pdf-lib

Transparent logo?

Yes - PNG alpha preserved

Cut off?

Reduce font size or use diagonal

Only first page?

Yes - via page selector

Built on pdf-lib (MIT), preserves your styling exactly.