PDF Watermark
Stamp a text watermark across every page of a PDF, right in your browser.
Drop a PDF file here, or click to choose
Files stay in your browser — nothing is uploaded.
Couldn't load the PDF engine. Check your connection and try again.Couldn't load the preview engine.KBMBOnly PDF files are supported.Enter some watermark text.Adding…"{name}" couldn't be read — it may be corrupted or password-protected.Something went wrong.
How it works
Add a PDF, set your watermark text, size, and opacity, then download. Everything happens locally in your browser — your file never leaves your device.