How to Add a Watermark to a PDF

A watermark signals status (“DRAFT”, “CONFIDENTIAL”), ownership (a logo), or discourages casual reuse. Done right it’s readable but doesn’t fight the content.

Text vs image watermark

• Text — quick for DRAFT/CONFIDENTIAL/COPY; control font, size, rotation, opacity.
• Image — a logo or signature stamp; control size and opacity.

How to add a watermark step by step

1. Open Watermark PDF and select your file.
2. Pick Text or Image mode and enter the text or upload the logo.
3. Set opacity (~20–35% is the sweet spot), rotation (−45° is classic for “DRAFT”), and position.
4. Apply to all pages or a range, preview, and download.

Tips

• Keep opacity low so the document stays readable — a watermark is a hint, not a redaction.
• Diagonal, centered text resists simple cropping better than a corner stamp.
• A watermark is not security. To actually restrict a file, also password-protect it; to remove content, redact it.

Privacy

Processed in your browser, never uploaded. No signup, no watermark added by us.

FAQ

Multi-line text? Yes — useful for “CONFIDENTIAL / DO NOT DISTRIBUTE”.

Only some pages? Apply to a page range.

Add yours with Watermark PDF.

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