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

Drop a PDF here
or click to browse
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.