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Watermark PDF

Add a text watermark to PDF pages.

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Texto de marca de agua

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Acerca de Watermark PDF

Add a diagonal text watermark to all or specific pages in a PDF. Customize the text, opacity, rotation, color, and font size. Common uses include marking documents as CONFIDENTIAL, DRAFT, or SAMPLE.

Cómo funciona

The tool uses pdf-lib to draw semi-transparent text across each page. The watermark is rendered as an overlay — existing content is not modified. You can control opacity to make the watermark subtle or prominent.

Paso a paso

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