Private PDF editor

Add a text watermark to PDF

Place a visible diagonal label such as Draft, Confidential, or Sample across every page.

Choose one PDF

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Select or drop a PDF

Choose a PDF to begin.

Visible document labeling

A watermark helps identify drafts, samples, internal documents, and review copies. This tool centers the same diagonal text across every page.

Important security note

A visible watermark discourages casual reuse but is not digital-rights management and does not prevent someone from editing the PDF.

Privacy

The document and watermark text remain in your browser during processing. The generated copy downloads directly to your device.