A circulating document ends up mistaken for the final version, or shared further than intended. A notice across every page removes the ambiguity at once, including on a printout or a photo of a screen.
How it works
Drop your file on the page, or click to pick it from your folders.
Start the job. It runs inside your browser: nothing is sent to a server.
Download the result. No account, no watermark, no queue.
When this really helps
Mark a draft
Nobody mistakes a working version for the signed one.
Flag a confidential document
The notice follows the document, even printed.
Personalise a copy
The recipient's name on every page discourages onward sharing.
What the conversion keeps, and what it loses
Working inside a browser comes with limits a hosted service does not have. Here they are in plain words, so you know what to expect before you start.
What is kept
- All existing content, identically
- Selectable text
- The file weight, almost unchanged
What is not carried over
- Nothing: the watermark is added, it replaces nothing
Worth knowing about the format
The watermark is text, not an image: it stays sharp at every zoom level and barely adds to the file. It is placed on top of the content, so it shows in print.
Not the right tool?
- Add page numbers — Pagination et filigrane vont souvent ensemble sur un dossier officiel.
- Clean the metadata — Marquer la page ne sert à rien si le fichier révèle encore son auteur.
- Compress a PDF — Si le document marqué doit ensuite être envoyé par courriel.
Why it's free
Online converters receive your file on their servers, process it, then promise to delete it. Every document costs them computing time: that is why they charge, and why they cap file sizes.
Here, the work happens on your own computer. The page contains no server code: your document cannot be received, because it is never sent. So there is nothing to bill, nothing to cap, and nothing to delete afterwards. Cut your connection once the page has loaded — everything keeps working.
Frequently asked questions
Can the watermark be removed?
Not easily: it is part of the page content. It is not a cryptographic protection either — it is a visible notice, not a lock.
What strength should I pick?
Around 10 to 15 % the watermark shows without getting in the way. Beyond 25 %, the document text becomes tiring to read.
Can I use my logo?
This tool places text. For an image, use the editor, which lets you add an element wherever you want.
Other tools
Edit the text in a PDF — Fix a line that is already written, even on a scanned document. This is the feature other services charge for, and the natural starting point when you need to retouch before converting.