ToolBox ProOnline Productivity

PDF Watermark

Stamp custom diagonal text watermarks across all PDF pages with adjustable opacity, color, and font size.

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Upload PDF for Watermark

Add custom text watermarks across all pages with adjustable opacity and rotation.

How to Use PDF Watermark

1

Upload PDF

Select the PDF file you want to watermark.

2

Configure Text

Enter your custom watermark text and adjust opacity and color.

3

Apply & Download

Stamp the watermark across all pages and save the file.

Key Features

Diagonal (-45°) centered watermark stamping across every page
Custom opacity slider (10% to 80%) for subtle background text
Preset quick text tags (CONFIDENTIAL, DRAFT, SAMPLE, APPROVED)
Vector typography rendering via Helvetica Bold

Frequently Asked Questions

Everything you need to know about this tool and data privacy.

The watermark is embedded directly into the page content stream for consistent rendering across all PDF viewers.

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