Watermark PDF — Add a Text Watermark for Free
Free · Private · No sign-up🔒 Your files never leave your device
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Stamp a text watermark — like "CONFIDENTIAL", "DRAFT", or a company name — across every page of a PDF. Adjust the opacity, size, and rotation to fit your document. Everything happens locally in your browser using JavaScript — your PDF is never uploaded to a server, so it's safe to use for private, sensitive, or confidential documents.
How to use watermark pdf
- 1Upload the PDF you want to watermark.
- 2Enter your watermark text and adjust opacity, font size, and rotation.
- 3Click "Add Watermark" to download the watermarked PDF.
Frequently asked questions
Can I control how visible the watermark is?
Yes — use the opacity slider to make it as subtle or as bold as you need.
Does the watermark appear on every page?
Yes, the watermark is applied to every page in the document automatically.
Can I remove a watermark added by this tool later?
The watermark is drawn directly onto the page content, so it becomes a permanent part of that PDF. Keep your original file if you might need an unwatermarked copy.