Add a watermark to a PDF
Stamp “Confidential”, “Draft”, your name or your logo across the pages, with the size, angle and strength you choose.
Files stay in this browser tab. Close the page and they are gone.
How it works
- Add the PDF.
- Type the watermark text or upload a logo, and adjust the look.
- Check the preview and download.
Questions
Can people remove the watermark?
It is drawn into each page of the PDF, so it can’t simply be switched off. Someone with PDF editing software could still try to edit it, as with any PDF watermark.
Can I use Chinese or other scripts?
Yes. Any text your device can display works, including Chinese and Malay.
Are my files uploaded anywhere?
No. The tool runs entirely in your browser, so your files never leave your device and nothing is kept after you close the page. You can check it yourself: once the page has loaded, turn on airplane mode — the tool keeps working.
Is it free? Is there a file limit?
Yes, it is free, with no sign-up and no watermark. There is no upload limit because nothing is uploaded; very large files are limited only by your device’s memory.