How do I add a watermark to a PDF?

Upload your PDF, type your watermark text (e.g. "CONFIDENTIAL"), adjust font size, opacity, rotation angle, and color, then click Apply. The watermark is added to every page.

Can I make the watermark semi-transparent?

Yes — the opacity slider lets you set transparency from 5% (nearly invisible) to 100% (fully opaque). A setting of 20–30% is typically used for professional watermarks.

Can I rotate the watermark text?

Yes. The rotation slider lets you angle the text from -90° to 90°. A -45° diagonal watermark is the most common professional style.

Does watermarking affect the original PDF content?

No original content is removed. The watermark text is drawn on top of each page. All existing text, images, and links remain intact.

Add Watermark to PDF

Stamp a custom text watermark across every page of your PDF. Control opacity, rotation, font size, and color.

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Supports PDF files

How to Add Watermark to PDF

Upload your PDF file.
Type your watermark text (e.g. CONFIDENTIAL, DRAFT, SAMPLE).
Adjust font size, opacity (20–30% is typical), rotation angle, and color.
The preview shows how the watermark will look on each page.
Click Apply & Download to save the watermarked PDF.

Why Use This Tool?

Watermarks protect intellectual property, indicate document status (draft, confidential, sample), and help prevent unauthorized distribution. This tool stamps watermark text directly into the PDF using embedded vector text — not as a rasterized image — so it stays crisp at any zoom level and does not increase file size significantly.

Add Watermark to PDF

How to Add Watermark to PDF

Why Use This Tool?

Frequently Asked Questions