Watermark PDF
Add a text or image watermark to every page of a PDF with adjustable opacity and rotation — locally.
How to use the Watermark PDF
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Open your PDF.
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Enter watermark text or upload an image and set opacity.
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Download the watermarked PDF.
How to watermark a PDF
A watermark overlays text or an image on each page — think "CONFIDENTIAL", "DRAFT" or a company logo. This tool draws the watermark with pdf-lib at your chosen opacity, angle and size, on top of the existing content. Everything runs locally in your browser, so sensitive files stay private.
Key features
- Text or image (PNG/JPG) watermark
- Adjustable opacity, size and rotation
- Applied to every page
- Runs fully in your browser
Frequently asked questions
Can I use my logo as a watermark?
Yes — upload a PNG or JPG and place it with your chosen opacity and size.
Is the watermark on every page?
Yes, the watermark is stamped on all pages of the document.
Are my files uploaded?
No. Watermarking happens locally in your browser.