Drop files here, or click to browse
Max 100 MB · Single file
Why Add Watermark to PDF
- See the watermark drawn on every page before you commit.
- Tweak opacity, rotation, and size and watch the preview update live.
- Stamp baked into the PDF only when you click Apply, files never leave your device.
Common questions
Is Add Watermark to PDF free to use?
Yes. Add Watermark to PDF is completely free. There is no sign up, no trial, and no usage cap.
Do I need an account to use Add Watermark to PDF?
No. You can start using Add Watermark to PDF straight away. We do not ask for an email address or a login.
Is my data uploaded to a server when I use Add Watermark to PDF?
No. Add Watermark to PDF runs entirely inside your browser, so the PDF files you enter never leaves your device and nothing is sent to us.
Do you store the PDF files I use with Add Watermark to PDF?
No. Because everything happens locally in your browser, there is nothing for us to store. Close the tab and it is gone.
Are my PDF files kept private?
Your documents are processed for the task at hand and are not stored or shared. Where possible the work happens right in your browser.
Is there a file size limit for Add Watermark to PDF?
Very large files may be slower because the work runs on your device, but there is no hard cap for everyday documents.
How do I use Add Watermark to PDF?
Enter or paste your PDF files and Add Watermark to PDF updates the result as you go. When it looks right, copy or download it with one click.
Does Add Watermark to PDF work on phones and tablets?
Yes. Add Watermark to PDF is responsive and works in any modern browser on mobile, tablet, and desktop.
Which browsers does Add Watermark to PDF support?
It works in current versions of Chrome, Firefox, Safari, and Edge. For the best experience, keep your browser up to date.
Is there a limit on how often I can use Add Watermark to PDF?
No. You can use Add Watermark to PDF as many times as you need, at no cost.
Can I use Add Watermark to PDF for commercial or client work?
Yes. You are free to use the output in personal, educational, and commercial projects.
Why is Add Watermark to PDF free?
The site is supported by advertising, which lets us keep every tool free and open to everyone.
What should I do if Add Watermark to PDF gives an unexpected result?
First check that your PDF files is formatted as expected. If something still looks wrong, use the feedback link on the page and we will take a look.