Oxford PDF

为 PDF 添加水印

在所选页面上放置文字或图片。

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为 PDF 添加水印

Choose a supported PDF, then review the changes in a separate copy.

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为 PDF 添加水印

  1. 选择页面

    Choose your PDF and the pages to mark.

  2. Place your mark

    Enter text or choose an image, then adjust its position, size and opacity.

  3. Review the copy

    Prepare and review the saved watermark before downloading a copy.

保存之前

  • 请使用不超过 100 MB、500 页且未锁定、无标签的 PDF。不支持数字签名、XFA、含脚本或其他不受支持的文件。原文件不会更改。
  • Watermarks are added above existing page content. They do not remove sensitive information or prevent copying.
  • Use PNG or JPEG images. Text uses a standard PDF font; unsupported characters are reported.

Questions about watermark pdf

Can I use a transparent logo?

Yes. A PNG can retain its transparency. Adjust opacity to keep the underlying page readable.

Does Oxford PDF add its own watermark?

No. Only the text or image you choose is added.