Watermark

Stamp text over every page.

Select a PDF to watermark

Click to choose, or drop a file here

How to Watermark

1
Open the tool
Open the Watermark tool and drop your file onto the page, or click to browse for it. Everything runs in your browser — the file is never uploaded.
2
Set your watermark text
Type the text, then adjust the size, angle, colour and opacity.
3
Apply and download
Click Apply to stamp it across every page and download the PDF.

Related PDF tools

Page numbersAdd page numbers with your choice of position.Add Header & FooterStamp custom header and footer text — page numbers, dates, titles — on every page.Rotate PDFRotate one page or the whole document.Crop PDFTrim margins from every page.

Watermark — frequently asked questions

Can I add an image watermark instead of text?+

Yes — use the separate Image Watermark tool for a logo or photo instead of text.

Will the watermark appear on every page?+

Yes, it's applied uniformly across the whole document.

Do you upload my files to a server?+

No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The AI tools that used to send extracted text to a server are currently disabled.

Is there a file size limit?+

There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.