PDF Text & Logo Watermarking Tool

Protect your PDF documents by applying custom text watermarks (e.g. "CONFIDENTIAL", "DRAFT", "COPY") or brand logo stamps across all pages with custom opacity and rotation.

Key Features

Add custom text (CONFIDENTIAL, SAMPLE, FOR OFFICIAL USE ONLY)
Upload image logo as visual watermark stamp
Customize font, color, opacity (transparency), size, and 45° rotation angle
Select specific target page ranges or apply to all pages
Instant browser-side vector rendering

How to Use Watermark PDF

Upload your PDF document file.
Type watermark text or upload a logo stamp graphic.
Adjust opacity slider, position grid, and rotation angle.
Click Apply Watermark & Download PDF.

Frequently Asked Questions

Why add a watermark to PDF documents?

Watermarks protect intellectual property, prevent unauthorized document copying, and mark official document status (Draft, Sample, Confidential).

Can I adjust watermark transparency so text underneath remains readable?

Yes, adjust the Opacity slider (typically 15% to 30%) so background text stays clearly visible.

Can I place watermarks diagonally across the center of pages?

Yes, 45° diagonal center placement is supported by default.

Is my document saved on external servers during watermarking?

No, all watermarking operates 100% inside your client browser.