💧 添加水印

为 PDF 添加水印 — 免费、快速、安全。

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Drop PDF file(s) here

or click to browse

如何使用添加水印

将文件拖放到上方区域，或点击选择文件。

点击按钮，在浏览器中即时处理您的文件。

处理完成后文件将自动下载，无需注册！

Performance & Details

Adds semi-transparent diagonal text across every page. Customizable text (CONFIDENTIAL, DRAFT, your company name). Font rendered via fontkit — supports Latin characters.

All processing uses pdf-lib (open-source). Files stay in your browser — zero server uploads. Last verified: May 2026.

添加水印 — 全美可用

添加水印 - Los Angeles, CA 添加水印 - San Diego, CA 添加水印 - San Francisco, CA 添加水印 - Houston, TX 添加水印 - Dallas, TX 添加水印 - Austin, TX 添加水印 - New York City, NY 添加水印 - Buffalo, NY 添加水印 - Rochester, NY 添加水印 - Miami, FL 添加水印 - Orlando, FL 添加水印 - Tampa, FL 添加水印 - Chicago, IL 添加水印 - Aurora, IL 添加水印 - Naperville, IL 添加水印 - Philadelphia, PA 添加水印 - Pittsburgh, PA 添加水印 - Allentown, PA 添加水印 - Columbus, OH 添加水印 - Cleveland, OH 添加水印 - Cincinnati, OH 添加水印 - Atlanta, GA 添加水印 - Augusta, GA 添加水印 - Savannah, GA 添加水印 - Charlotte, NC 添加水印 - Raleigh, NC 添加水印 - Greensboro, NC 添加水印 - Detroit, MI 添加水印 - Grand Rapids, MI 添加水印 - Warren, MI

Browse all US locations →

添加水印 — Available Across Europe

添加水印 - Dublin, IE 添加水印 - Cork, IE 添加水印 - London, GB 添加水印 - Manchester, GB 添加水印 - Berlin, DE 添加水印 - Munich, DE 添加水印 - Amsterdam, NL 添加水印 - Rotterdam, NL 添加水印 - Paris, FR 添加水印 - Lyon, FR 添加水印 - Madrid, ES 添加水印 - Barcelona, ES 添加水印 - Rome, IT 添加水印 - Milan, IT 添加水印 - Zurich, CH 添加水印 - Geneva, CH

Browse all European cities →

Need More?

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添加水印 — Frequently Asked Questions

Can I customize the watermark text?▼

Yes — type any text you want. Common choices are CONFIDENTIAL, DRAFT, COPY, or your business name.

Will the watermark cover the document content?▼

The watermark is semi-transparent and positioned diagonally, so underlying text remains readable.

Can I add an image watermark instead of text?▼

Currently text watermarks are supported. Image watermark support is on our roadmap.

Can the watermark be removed?▼

The watermark is embedded in the PDF and cannot be easily removed without specialized software.

Does watermarking work on scanned PDFs?▼

Yes — the watermark is added as a text layer over every page, including scanned image PDFs.