PDF watermark

Add text, a logo, a date or page numbers to selected document pages.

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Choose files or drag them hereOne PDF · no password or digital signature

Watermark

Watermark type

Watermark text

Text color

Add current dateAdd page numbers

Watermark width, %

Opacity, %

Watermark position

Margin from edges, %

Watermark rotation, °

Repeat across the entire area

The logo stays only in this tab’s memory and is never sent to a server.

Pages

Your preview will appear here

A watermark is not an electronic signature or copy protection. It does not remove or hide the original content.

How to use

Choose a PDF, then a text watermark or a PNG, JPEG or WebP logo.
Set position, size, opacity and pages. For example, “2–4” adds a mark only to pages two through four.
Preview the selected page, then add the watermark and download the PDF.

Input and output: PDF. Text marks support dates and page numbers. Logos: up to 5 MB and 2 megapixels.

The PDF text layer is preserved. A watermark is not a signature or secure redaction: original content remains in the document.

Libraries: pdf-lib, pdfjs-dist. Code and libraries are served from this same site. Versions, licenses & source code.

Limits depend on device memory, browser format support and the input file. Originals are not modified.