How to watermark a PDF or image
- Drop your files above: photos (JPG, PNG, WebP) and PDFs together are fine.
- Type your text, for example your name, website or "Confidential", or choose Logo and pick your logo.
- Choose where it goes: tiled across the page, one large mark diagonally from corner to corner, in the centre, at the top or bottom, or in a corner, and set the size, opacity and angle. The preview updates as you go.
- Press Watermark and download. One file downloads directly; several come as a ZIP.
Which watermark to use
- Sharing a draft, a quote or a confidential report: "Confidential" or "Draft", tiled, about 20% opacity. Readable, but obvious if it's forwarded.
- Photos for social media or a portfolio: your logo in a corner, 40–60% opacity, so the photo still looks good.
- Paid notes, worksheets or ebooks: your name or brand, tiled at a 30° angle. A tiled mark is far harder to crop out than a corner one.
Questions
Are my files uploaded anywhere?
No. The watermark is added by your own browser, on your computer or phone. Your files never leave your device, so the tool works for confidential documents too.
Is it free? Is there a limit?
It is free, with no sign-up and no watermark of ours on your files. You can add many files at once; very large PDFs (hundreds of pages) depend on your device's memory.
Can I use my logo?
Yes. Choose Logo and pick a PNG with a transparent background for the cleanest result. Set its size and opacity, and tile it or put it in a corner.
Does it work with Hindi or other languages?
Yes. The text is drawn as an image before it is placed, so any language or symbol your device can show, including Hindi and the rupee sign, appears exactly in images and PDFs.
Can someone remove the watermark?
A watermark is a deterrent, not a lock. A tiled diagonal watermark across the whole page is much harder to crop or paint out than a small one in a corner.
Also free: sign a PDF. All free tools.