Local · Private

PDF Watermark & Page Numbers

Stamp a text watermark across every page and add tidy page numbers. Runs entirely on your device. No upload, ever.

Drop a PDF here
or click to browse

Files never leave your browser

Watermark

FREE

Add a text watermark

Watermark text

Font size · 60 pt

Opacity · 18%

Rotation · -45°

Colour

#3f6b54

Position

Apply to pages Leave blank for every page. Use ranges and commas, e.g. 1-3, 5.

Page numbers

Add page numbers

Format

Position

Start at

Font size · 11 pt

Live preview of page 1, the same stamps apply to all pages.

About PDF Watermark & Page Numbers

PDF Watermark & Page Numbers is a free, private browser tool by Digital Heroes. It adds a text watermark and page numbers to any PDF. Everything happens locally on your device: your file is never uploaded to a server, no sign-up or installation is required, and the tool keeps working offline. You control the watermark opacity, rotation, colour, and position, and can target specific pages using a range like 1-3, 5.

What you can do

Stamp a text watermark (CONFIDENTIAL, DRAFT, or any custom text) across every page or a specific range.

Control opacity and rotation so the watermark sits clearly without blocking your content.

Choose a position: centered diagonal, tiled repeat, or any of the four corners.

Add page numbers in three formats (simple, "1 / N", or "Page 1 of N") at any edge or corner.

Pick any watermark colour with the built-in colour picker.

Download a clean PDF instantly, 100% in your browser with no upload and no size limit.

How to use PDF Watermark & Page Numbers

Open PDF Watermark & Page Numbers. It runs entirely in your browser, with no signup.

Drop your PDF onto the upload zone (or click to browse). It never leaves your device.

Configure the watermark text, opacity, rotation, colour, and position, or enable page numbers.

Watch the live preview update as you adjust the settings.

Click Apply & download to get your stamped PDF instantly.

Frequently asked questions

Is PDF Watermark & Page Numbers free?

Yes. PDF Watermark & Page Numbers is completely free. No sign-up, no account, and no usage limits.

Is it private? Are my files uploaded anywhere?

No. The tool runs entirely in your browser on your own device. Your file is never uploaded to any server.

Does it work offline?

Yes. Once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. Installing it as an app is optional and only adds offline convenience.

Can I watermark only specific pages?

Yes. Use the Apply to pages field and enter a range like 1-3, 5 to stamp only those pages. Leave it blank to apply to every page.

What watermark positions are available?

You can place the watermark centered diagonally, as a tiled repeat across the page, or in any of the four corners (top-left, top-right, bottom-left, bottom-right).