Can I add a watermark to all pages at once?

Yes. The watermark is applied to every page in the document automatically.

Can I adjust the opacity?

Yes. You can set the opacity from fully transparent to fully opaque, so the watermark can be subtle or prominent depending on your needs.

Watermark PDF

Q: Can I add an image watermark?

This tool adds text watermarks. For image-based watermarks you would need a more advanced PDF editor.

Q: Are my files private?

Yes. Watermarking happens entirely in your browser. Your PDF never leaves your device.

Add a custom text watermark to every page - CONFIDENTIAL, DRAFT, or anything.

Drop a PDF here

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How to watermark a PDF

Upload your PDF

Drop your PDF into the box above. The watermark will be applied to every page.

Configure the watermark

Enter your watermark text (e.g. "CONFIDENTIAL", "DRAFT", your company name). Set the position, font size, color, rotation, and opacity.

Download

Your watermarked PDF downloads directly to your device. Nothing is uploaded or stored.

Frequently asked questions

Is the watermark applied to every page?

Yes. The text watermark is stamped on every page of the document automatically.

Can I control the opacity?

Yes. Set opacity from very light (subtle background marking) to fully opaque (prominent overlay). Most official document watermarks use 20–40% opacity.

Can I add an image watermark?

This tool adds text watermarks. For image watermarks — such as a logo — you would need a more advanced PDF editor.

Can the watermark be removed by someone?

Text watermarks are embedded into the page content and not easily removed. However, a determined user with professional PDF tools could potentially remove or obscure them. For document protection, combine watermarking with password protection.

Are my files private?

Yes. Watermarking happens entirely in your browser using pdf-lib. Your PDF never leaves your device.