Add Watermark to PDF - Free Online Watermark Tool | NToolHub

Add Watermark to PDF

Add text or image watermarks to PDF. Customize opacity, rotation, tile mode, position, colors & fonts. 100% browser-based & secure.

Text & Image
Tile Mode
100% Secure
Mobile Friendly
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Upload PDF to Watermark

Drag & drop or click to browse | Max 50MB

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Watermark Applied Successfully!



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How to Add Watermark to PDF

1

Upload PDF

Drag & drop your PDF file. Max 50MB supported.

2

Choose Watermark

Select text or image watermark. Customize text, font, color, opacity.

3

Set Position & Mode

Choose position or tile mode. Adjust rotation and opacity.

4

Apply & Download

Preview then apply. Download your watermarked PDF instantly.

Watermark Features

Text Watermark

Custom text

Image Watermark

Logo/Stamp

Tile Mode

Repeat pattern

Opacity Control

5-100%

Rotation

-180° to +180°

9 Positions

Any placement

Custom Colors

Any color

Font Styles

Multiple fonts

Page Selector

All/First/Last/Custom

100% Secure

Browser-based

FAQ

How to add a watermark to PDF online?
Upload your PDF, choose text or image watermark, customize text/font/color/opacity, select position or tile mode, click Apply. Everything is browser-based - no file upload to any server.
Can I add image watermark like a logo?
Yes! Upload any image (PNG with transparency works best) as your watermark. Adjust scale, opacity, rotation, and position. Perfect for company logos or stamps.
What is Tile mode?
Tile mode repeats the watermark across the entire page like a pattern. Great for "CONFIDENTIAL", "DRAFT", or "SAMPLE" watermarks that need to cover the whole document.
Can I watermark specific pages only?
Yes! Use the page selector to apply watermark to All Pages, First Page, Last Page, or Custom pages (e.g., "1,3,5-7").
Is my document safe?
100% safe! All processing happens in your browser. Your PDF never leaves your device. Complete privacy guaranteed.
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