Add Watermark
Stamp each page with custom text watermark for internal or draft sharing.
Category: Edit
Processing: On-device
Quota bucket: Core
Open interactive tool: /tools/watermark
How to use Add Watermark
- Select PDF and enter concise watermark text.
- Adjust size, opacity, and angle for readability.
- Run watermarking and download output.
- Review overlap on dense pages and rerun if needed.
- Use clear labels like DRAFT or INTERNAL when policy requires.
Tips
- Short phrases reduce visual clutter.
- Use moderate opacity to preserve readability.
- Apply watermark after major page edits.
Privacy: Your files never leave your browser. All processing runs on-device.
Full privacy model
Frequently asked questions
What does Add Watermark change?
It overlays text watermark marks onto each page of the PDF.
Is Add Watermark private by default?
Watermarking is local and does not require upload processing.
What does Add Watermark not protect?
It does not prevent screenshots or unauthorized redistribution.
Limitations
- Watermarks do not provide cryptographic document security.
- Aggressive placement can obscure source content.
Related tools
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Insert page numbers consistently across the document.
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Trim margins from all or selected pages by percentage or absolute points.
Sign PDF
Draw a freehand signature and place it on any page as a visual image overlay.