> For the complete documentation index, see [llms.txt](https://overleaf-pro.ayaka.space/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://overleaf-pro.ayaka.space/latex/zh-cn/zhi-shi-ku/069-how-to-jump-to-the-source-code-from-the-typeset-pdf-synctex.md).

# 如何从排版后的 PDF 跳转到源代码（SyncTeX）

Overleaf 可让你从排版后的 PDF 中的某个位置跳转到 LaTeX 源代码中的对应位置，反之亦然。 **注意**：如果你的项目的主 `.tex` 文件存储在文件夹内（即，它必须放在项目的顶层（根）级别）。另外还列出了其他一些可能的原因 [这里](/latex/zh-cn/zhi-shi-ku/132-synctex-errors.md).

你可以选择以下任一方式：

* 双击 PDF，这会使 Overleaf 的编辑器滚动到源代码中的相应位置；或者
* 使用位于源代码面板和预览面板之间分隔线上的箭头按钮，在源到预览或预览到源之间跳转：

![显示 Overleaf 源到预览或预览到源箭头的图片](/files/1d421fb9838bf2b1a2cd81ac1958f61960011295)

如果你看不到这些箭头，或者双击 PDF 没有反应，你需要确保项目的 PDF 查看器设置为“Overleaf”而不是“Browser”。这里有一段简短视频，演示如何设置项目的 PDF 查看器，并展示 Overleaf 的源代码/PDF 同步功能。

{% embed url="<https://videos.ctfassets.net/nrgyaltdicpt/2xt7xSOvXcVqKZEAkxoaJi/76436c82c9382f8e78c84140c96deb40/SyncTeX_video.mp4>" %}

### SyncTeX：这项 Overleaf 功能背后的 TeX 技术

Overleaf 的“跳转到源代码位置”和“跳转到 PDF 位置”功能是使用 SyncTeX 实现的，SyncTeX 是所有 TeX 引擎都内置的一项标准功能。对 SyncTeX 的简要介绍感兴趣的读者可以在 [这篇 Overleaf 文章中](/latex/zh-cn/geng-duo-zhu-ti/39-mltex-enctex-and-synctex-tex-extensions.md).


---

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