Add Watermark to PDF

Stamp a text watermark across every page of your PDF. Customize the text, opacity, font size, and angle. Everything runs in your browser — your files are never uploaded.

100% Private — Your files are processed entirely in your browser and never leave your device.

How to Add a Watermark to a PDF

1

Upload your PDF

Drag and drop or click to select the PDF file you want to watermark.

2

Customize your watermark

Enter your watermark text (e.g., "CONFIDENTIAL" or "DRAFT") and adjust the opacity, font size, color, and position to your liking.

3

Apply and download

Click "Add Watermark" and download your watermarked PDF. The watermark appears on every page. Your original file is never modified.

Frequently Asked Questions

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