PDF 水印

为 PDF 文档添加水印

所有处理均在浏览器中完成，不会上传任何数据。

Offline Ready

File Input

File Output

Add Watermark to PDF

Upload a PDF and add a custom text watermark overlay to all pages.

🔒所有处理均在浏览器中完成，不会上传任何数据。

How to Use

Upload a PDF, customize your watermark text, color, size, opacity, and position, then click "Add Watermark". The watermark will be applied to all pages. All processing happens locally.