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PDF Watermark

Add a text or image watermark to every page of a PDF — client-side, no upload.

Your data never leaves your device
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Frequently Asked Questions

  • Is the watermark on every page?

    Yes. The watermark is drawn on each page of the PDF.

  • Can I watermark scanned PDFs?

    Yes — the watermark is an overlay, so it works on any PDF including scanned/image-based ones.

  • Does this upload my PDF?

    No. All processing runs in your browser via pdf-lib.