★ Free PDF Tool
Watermark PDF
Add a text watermark such as CONFIDENTIAL or DRAFT to every PDF page.
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Runs entirely in your browser. Your files and text are never uploaded to our server.
About this toolWatermark PDF adds a diagonal or centred text stamp to each page, so readers know a document is a draft, a copy or confidential.
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Watermark PDF adds a diagonal or centred text stamp to each page, so readers know a document is a draft, a copy or confidential.
More about Watermark PDFHow to use, good to know & FAQ
How to use Watermark PDF
- Choose or drop a PDF file.
- Type the watermark text and choose its size, colour and transparency.
- Click "Add watermark" and download the PDF.
Frequently asked questions
Is my file uploaded anywhere?
No. The file is opened and processed by your own browser, and the result is created on your device. Nothing is sent to our server, so it works even with confidential documents.
Can the watermark be removed later?
It is drawn into the page, so it cannot simply be switched off, but it is not a security feature. Treat it as a visible label.
When to use Watermark PDF
- Mark drafts so they are not mistaken for final versions
- Label documents as Confidential before sharing
- Add your name or brand to portfolio PDFs
- Discourage copying of shared study material
📘 Read the guide: How to Merge PDF Files Online for Free (Step-by-Step Guide)