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PdfDady

Add a watermark to a PDF

Mark a PDF as CONFIDENTIAL, DRAFT or “For KYC only”, or add your logo. Choose the look, see it on the page, and download the watermarked copy.

1. Add a PDF

2. Watermark

Watermark type
60 pt
Colour
30 %
Angle
Layout

The watermark is added on top of each page. It deters copying but can be removed with PDF editing software, so it isn't a security feature.

Add a PDF to watermark.

How to watermark a PDF

  1. Add your PDF

    Choose one PDF, up to 100 MB. A preview of the page appears.

  2. Choose text or an image

    Type your text or tap a suggestion, or add a PNG, JPG or WebP logo.

  3. Set the look

    Adjust size, colour, opacity and angle, and place it once in the centre or repeated across the page.

  4. Download

    Save watermarked.pdf. Your original file is not changed.

What you can do with this tool

  • Text or logo

    Any text, with quick picks like CONFIDENTIAL, DRAFT and For KYC only, or your own image.

  • Hindi and other scripts

    Text in Hindi and other scripts is added as an image of the text, so it shows correctly.

  • Diagonal or straight, once or repeated

    Tilt the mark, centre it, or repeat it across the whole page.

  • Live preview

    See the watermark on your page while you change it.

  • Page text stays selectable

    The mark is added on top; the page underneath is not re-rendered.

  • Stays on your device

    Your PDF and logo are not uploaded. Free, no sign-up.

Limits and what is kept

InputOne PDF, up to 100 MB
WatermarkText (up to 200 characters) or PNG, JPG, WebP image
Opacity10–100%
PagesAll, or a range you choose
Removable?Yes, with PDF editing softwareA watermark deters copying; it isn't security
Password-protected PDFsNot supportedRefused with a message

Frequently asked questions

How do I add a watermark to a PDF for free?

Add the PDF, type the watermark text or add an image, adjust the look and download watermarked.pdf. It's free with no sign-up.

Can I use my logo as a watermark?

Yes. Choose Image or logo and add a PNG, JPG or WebP. A PNG with a transparent background looks best.

Should I watermark ID copies I share?

Many people add text like “For KYC only” or the purpose and date to copies of ID documents, to make reuse harder. It's a deterrent, not a guarantee.

Can someone remove the watermark?

Possibly. The watermark is added on top of the page, so someone with PDF editing software can remove it. Don't rely on it for security.

Does the watermark cover the text?

It's drawn over the page at the opacity you choose. 20–40% keeps the text readable underneath.

Can I watermark only some pages?

Yes. Set From page and To page to the range you want.

Is my PDF uploaded?

No. The watermark is added in your browser and neither your PDF nor your logo is uploaded.

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