PDF Tool

Add Watermark to PDF

Overlay custom text on every page of your PDF.

Upload PDF

Watermark Text

Font Size (20–72)

Opacity (10–100%)

Rotation (-180 to 180)

Position

Color

Original Size-

Watermarked Size-

Upload a PDF to add a watermark.

Quick Guide

Step 1: Upload your PDF file via file picker or drag & drop
Step 2: Enter watermark text and choose font size
Step 3: Adjust position, opacity, and rotation
Step 4: Click Add Watermark and download

What is Add Watermark to PDF?

Add Watermark to PDF adds text or image watermarks to PDF documents. Upload your PDF, customize the watermark, and download. See also: protect-pdf or sign-pdf.

How It Works

Upload or load your PDF into the tool, configure the settings as needed, and click the process button. The tool reads and modifies the PDF structure using client-side JavaScript libraries, then generates a downloadable output file. Your documents never leave your browser.

Use Cases

Professionals who need to modify PDF documents quickly without Adobe Acrobat
Students annotating or organizing research papers and study materials
Anyone who needs a fast, private way to edit PDF files on any device

Frequently Asked Questions

Is the Add Watermark to PDF free?

Yes, the tool is 100% free with no file size limits or usage restrictions.

Are my PDF files uploaded to a server?

No, all processing happens in your browser using JavaScript. Files never leave your device.

What browsers are supported?

The tool works on all modern browsers including Chrome, Firefox, Safari, and Edge.

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