Free Add Watermark to PDF Tool Online
Use this free tool to add a text watermark to a PDF. Fast, private, and processed entirely in your browser.
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What is PDF Watermark?
PDF Watermark overlays text such as “CONFIDENTIAL” or “DRAFT” across every page, with adjustable size, opacity, and angle. It helps mark ownership or document status. The watermark is applied in your browser and nothing is uploaded.
How to use this tool
- Upload a PDF file.
- Type your watermark text and adjust the style.
- Click Add Watermark.
- Download the watermarked PDF.
Features
- Add custom watermark text to every page
- Adjust opacity, size, and angle
- Diagonal or horizontal placement
- Browser-based processing (no upload)
- Download the watermarked PDF
This tool runs in your browser. Your files and text are not uploaded to our servers, and we do not store your input.
Frequently asked questions
Can I control how visible the watermark is?+
Yes. Adjust the opacity so the watermark is subtle or bold.
Does it watermark every page?+
Yes. The watermark text is applied to all pages of the document.
Are my files uploaded?+
No. The watermark is added in your browser.
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