Add Watermark to PDF
Add a text watermark such as CONFIDENTIAL or DRAFT to your PDF. Choose size, opacity, angle and layout. Free, no signup, private in your browser.
- Free
- No upload
- No sign-up
- No watermark
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How to add a watermark to a PDF
- Choose a PDF.
- Type your watermark text and adjust size, opacity, angle and layout.
- Click Add watermark and download the file.
Why use PDFKettle
Files stay on your device
Your PDF is processed inside your browser and never uploaded, so nobody else gets a copy.
Free, no sign-up
No account, no email and no watermark on your files. Just open the tool and use it.
Fast, no waiting
There is no upload or download queue. Small files are done almost as soon as you click.
Works on any device
Use it on Windows, Mac, Linux, Android or iPhone in any modern browser. Nothing to install.
About Add Watermark
The watermark is drawn on top of every selected page. A lighter opacity keeps the page readable while still making the stamp visible.
Use Center for one large stamp such as DRAFT, or Tile to repeat smaller text across the whole page. The built-in font covers Latin letters, digits and common punctuation.
Frequently asked questions
Are my files uploaded to a server?
No. The tool runs inside your browser, so your files are read and processed on your own device and never sent anywhere.
Can I watermark only some pages?
Yes. Enter a range such as 1-3,5 to limit the watermark to those pages.
Can the watermark be removed later?
The watermark is drawn onto the page, so it can't simply be switched off in a viewer. Keep your original file if you may need a clean copy.
Which characters are supported?
Latin letters, digits and common punctuation. Other scripts need a custom font and are not supported yet.