搜索并高亮 PDF 中的文字

在 PDF 中查找词语,并保存一份将每个匹配项高亮为黄色的副本。

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使用方法

  1. 1
    选择设置

    填写信息或选择您需要的选项。

  2. 2
    查看结果

    更改任何内容时,预览会立即更新。

  3. 3
    下载或保存

    将结果保存到您的设备。不会向服务器发送或保存任何内容。

About this tool

Choose a PDF, type the word or phrase you are looking for and the tool marks every match with a yellow highlight, tells you how many matches there are and on which pages, and lets you download the highlighted copy. It works on PDFs that have real text; for scans, run OCR first.

Where it is useful

Students mark key terms in lecture notes, lawyers flag a clause across a contract, and anyone reading a long report can highlight a name or a number so that it is easy to find again. The original file is not changed.

Scanned documents

A scanned PDF is only a picture, so there is no text to search. Run the OCR PDF tool first to add a text layer and then use this tool.

Matching

Search is by plain text inside each text run of the page. A phrase that is split across two lines may not be found, so try a shorter part of it. Tick the case box to match capitals exactly.

Privacy

The PDF is processed in your browser and is not uploaded.

获得最佳结果的提示

开始之前请花一点时间阅读选项,并先用一个小例子试用工具。一切都在您设备的浏览器中运行;您输入或添加的任何内容都不会被上传,关闭标签页会清除所有内容。如果看起来不对,请刷新页面重试,或使用本页的报告链接告诉我们出了什么问题。如果结果仍然看起来不对,请每次只更改一个值,看看哪个输入影响最大。如果您还会再用,请收藏此页。

要点

常见问题

Does it work on scanned PDFs?

Only after OCR, because a scan has no text to search.

Is the original changed?

No. A new highlighted copy is saved.

Can it find a phrase on two lines?

Not always. Search for a shorter part of the phrase.

Is the file uploaded?

No.

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