PDF Watermark
Stamp a text watermark across every page.
Drop your file here
or
PDF · Upload a file up to 200 MB
Your files are secure and private. Everything is processed on your device.
How it works
- Upload your PDFSelect the document to mark.
- Set your watermarkText, opacity, angle, size and colour.
- Download the resultEvery page carries the watermark.
What this tool does
- Any wording you like, not a fixed list
- Opacity from a faint tint to a bold stamp
- Adjustable rotation, size and colour
- Applied to every page in one pass
Supported formats
Maximum file size: 200 MB.
Frequently Asked Questions
It is drawn into the page content, so it cannot be toggled off in a reader. Determined editing tools could still remove it — treat it as a deterrent, not encryption.
Around 20% stays readable behind body text. Raise it to 40% or more when the marking must dominate.
This tool handles text watermarks. For images, place the logo first with an editor and then export.
It scales well — the watermark is drawn per page with no re-rendering of existing content.
Privacy and security
Your file is read directly from your device and processed in your browser. It is never uploaded to a server, so there is no copy for us to keep, share or lose. Closing the tab discards everything. If you want to check this yourself: open your browser’s developer tools, switch to the Network tab, and use the tool — you will see no request carrying your file or input leave the page.
Related tools
View all tools →Protect PDFAdd a password and encrypt your PDF.PDF Page NumberingAdd page numbers exactly where you want them.Compress PDFReduce PDF file size while maintaining the best possible quality.Image WatermarkMark your images with your name or brand.PDF MetadataSee what your PDF says about itself, and change it.