首页 Vue实现PDF批注[可运行源码]

Vue实现PDF批注[可运行源码]

上传者： x8y9z0 | 上传时间： 2026-01-19 09:23:13 | 文件大小： 41.08MB | 文件类型： ZIP
本文详细介绍了如何使用Vue和pdf-lib库实现PDF批注功能，包括自由线条绘制、矩形框批注、文字批注、颜色更改以及撤回操作。开发前需准备pdf-lib、fontkit和jquery库，并下载STSong.TTF字体包。文章提供了完整的代码实现，涵盖了PDF渲染、批注功能实现、文本批注编辑等核心功能。通过mounted生命周期钩子加载PDF文档，使用modifyPdf方法将批注添加到PDF文档中。批注功能包括自由线条、矩形和文字批注的添加与编辑，支持双击修改文本批注。此外，还介绍了如何保存带有批注的PDF文件，包括将批注绘制到PDF上并转换为Base64格式。 文章中首先介绍了Vue与pdf-lib库结合使用，实现PDF批注功能的技术方案。通过使用pdf-lib库，我们可以轻松地在PDF文档上进行各种批注操作，例如绘制自由线条、添加矩形框、书写文字批注等。在颜色更改方面，用户可以根据个人喜好调整批注颜色。同时，该功能还支持撤回操作，方便用户在不小心进行错误操作后进行修正。 在开发过程中，需要安装pdf-lib、fontkit以及jquery库，并确保引入STSong.TTF字体包，这对于中文文本的正常显示是必要的。文章详细阐述了整个功能实现的代码，包括PDF文档的加载、批注功能的添加以及文本批注的编辑等关键环节。利用Vue的mounted生命周期钩子，可以加载PDF文档并初始化相关批注工具。修改PDF文档时，会通过modifyPdf方法将用户添加的批注信息整合进PDF文档中。 在功能实现方面，文章详细讲解了如何实现自由线条、矩形框和文字的添加与编辑。用户可以通过界面元素进行批注的创建，而双击已有的文字批注则可以进入编辑状态，允许用户修改文字内容。文章还提供了保存带有批注的PDF文件的方法，即通过绘制批注至PDF页面并将其转换为Base64格式来保存。这样不仅能够保证批注信息的完整保存，同时也便于后续的查看与分享。 整体而言，文章通过详实的代码实现和步骤说明，为读者提供了一个Vue环境下使用pdf-lib库实现PDF批注功能的完整解决方案。该方案不仅涵盖了基础的批注功能，还提供了扩展的编辑和保存功能，使得在Web前端开发中处理PDF文档变得更加便捷。

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