Watermark PDF

Add a diagonal text watermark to every page of a PDF. Customizable text and opacity.

Drag and drop your PDF file here or click to browse
Files are processed locally and never uploaded to any server
What this does

Overlays a semi-transparent text watermark diagonally across every page of a PDF document.

When to use this

When marking documents as CONFIDENTIAL, DRAFT, or adding ownership text before sharing.

How it helps

Protect your documents with a professional watermark. Customizable text and transparency.

How to use

Upload a PDF, enter watermark text (e.g. CONFIDENTIAL), set opacity, and click Add Watermark.

Related Tools

PDF Merge
Merge multiple PDF files into one document. Runs entirely in your browser — y...
Split PDF
Split a PDF into smaller files by selecting a page range. Runs entirely in yo...
Image to PDF
Convert one or more images (PNG, JPG) into a single PDF document. Processed i...
PDF to Image
Convert each page of a PDF into a PNG or JPG image. Rendered entirely in your...