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PDF tools

Watermark PDF

Add a transparent text watermark to PDF pages.

Files and text stay in your browser. No uploads.
    Ready0%

    Set text, size, opacity, and the pages to mark.

    How it works

    1. Provide your input

      Set text, size, opacity, and the pages to mark.

    2. Process locally

      Your browser performs the work without sending your content to a server.

    3. Use your result

      Download or copy the finished result when it is ready.

    Frequently asked questions

    Is my data uploaded?

    No. This tool processes your files or text locally in your browser.

    What does this tool use?

    pdf-lib. All required code loads from this site before processing begins.