What Watermark PDF does
Watermark PDF stamps text or a picture across the pages of a document. Mark a file as DRAFT or CONFIDENTIAL, add your name to discourage copying, or brand a document with your logo. You control the position, angle, size and transparency.
How to watermark a PDF
- Add your PDF.
- Choose a text or an image watermark.
- For text, type the words and pick a colour. For an image, select a logo — a PNG with a transparent background works best.
- Set the position, angle, size and opacity.
- Press the button and download the watermarked file.
Options
| Option | Choices |
|---|---|
| Type | Text, or image / logo |
| Position | Centre, repeated across the page, or any of the four corners |
| Angle | Diagonal up, horizontal, diagonal down or vertical |
| Size and opacity | Adjustable, from a faint background mark to a bold stamp |
Common watermark styles
- Status stamp: DRAFT or COPY in large grey diagonal text at the centre.
- Confidentiality notice: CONFIDENTIAL repeated across the page at low opacity.
- Ownership mark: your name or company in a corner, small and unobtrusive.
- Purpose limitation: “Submitted to XYZ Bank for KYC only” across a copy of an ID document. This is a sensible habit when you send identity documents, because it discourages reuse.
- Logo: your brand mark in a corner of every page.
Tips
- Keep the opacity low enough that the text underneath stays easy to read — roughly 15–30% suits a centre watermark.
- A tiled watermark is harder to crop out than a single one.
- Text can be in any language your device displays, because it is drawn as an image.
- Check a page with dense text and a page with pictures, to make sure the watermark is visible on both without obscuring either.
What a watermark does and does not do
A watermark becomes part of each page; it is not a removable layer in the saved file, so keep your original if you need a clean copy. It deters casual reuse and makes the status of a document clear. It is not a security feature: it does not stop anyone copying text or printing. For access control, add a password with Protect PDF. To remove information, use PDF Redactor.
Privacy
The watermark is added in your browser. Your PDF and logo are not uploaded to our server.