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Watermark PDF

Add a diagonal text watermark, like CONFIDENTIAL or DRAFT, to every page of a PDF document.

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Your file is processed entirely in your browser. Nothing is uploaded to any server.

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How It Works

How watermarking works

This tool draws your chosen text diagonally across the center of every page in your PDF, at an adjustable transparency level, so the underlying content remains visible while clearly marking the document.

Common uses for watermarks

Watermarks are commonly used to mark documents as DRAFT, CONFIDENTIAL, or SAMPLE, or to indicate ownership before sharing a document publicly, without permanently editing the original content underneath.

Frequently Asked Questions

Can I remove the watermark later?

This tool creates a new PDF with the watermark embedded as part of the page content, it isn't a removable overlay, so keep your original file if you need an unwatermarked version later.

Does this upload my file anywhere?

No, the watermark is applied entirely in your browser, your PDF is never uploaded to any server.

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