Watermark PDF

Add custom watermarks to your PDF files online for free.

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Text

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Transparency

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Over the PDF content

Below the PDF content

Position

Transparency

Rotation

Layer

Over the PDF content

Below the PDF content

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HackThePDF’s **Watermark PDF Tool** helps you protect documents by adding text or image watermarks. Personalize watermark position, opacity, and style easily. Upload your PDF, apply the watermark, and download instantly. Great for official use and copyright protection.