Watermark & Page Numbers

Stamp text/image watermarks, or add page numbers and Bates numbering. All local.

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Processed locally, files never leave your device

About this tool

Add a Watermark to a PDF

Stamp text like DRAFT or CONFIDENTIAL diagonally across every page.

Adjust size, opacity, rotation, color and position to taste.

Add Page Numbers to a PDF

Number your pages with formats like "Page 1 of 10" placed wherever you like.

Choose the starting number, position, size and color.

Bates Numbering for PDF

Apply sequential Bates numbers for legal discovery and case files.

Set a prefix and starting number, then stamp every page consistently - without uploading sensitive case material.

Frequently asked questions

Can I control the look?

Yes - set the text, font size, opacity, rotation, color and position.

Is it private?

Everything runs locally in your browser using WebAssembly. Because no data is uploaded to a cloud server, your files remain strictly private, and the entire process generates zero server carbon emissions, making it highly eco-friendly.

Can I customize the format?

Yes - use tokens like {n} and {total}, e.g. "Page {n} of {total}".

How do I set a Bates prefix?

Use a format like "BATES-{n}" and choose the starting number.

Is this safe for legal files?

Everything runs locally in your browser using WebAssembly. Because no data is uploaded to a cloud server, your files remain strictly private, and the entire process generates zero server carbon emissions, making it highly eco-friendly.

Can I change the wording?

Yes - type any text you want as the watermark.

Is this safe for legal documents?

Everything runs locally in your browser using WebAssembly. Because no data is uploaded to a cloud server, your files remain strictly private, and the entire process generates zero server carbon emissions, making it highly eco-friendly.

How do I add a watermark to PDF?

Open the tool, drop your file, adjust any settings, and click the action button. The result downloads to your device instantly.

Do I need to create an account?

No - KuroPDF is completely free with no sign-up required.

Are my files uploaded?

Everything runs locally in your browser using WebAssembly. Because no data is uploaded to a cloud server, your files remain strictly private, and the entire process generates zero server carbon emissions, making it highly eco-friendly.

How do I add page numbers to PDF?

Open the tool, drop your file, adjust any settings, and click the action button. The result downloads to your device instantly.