比较PDF
比较两个PDF文档。高亮显示版本之间的差异。
上传源 PDF 文档
上传比对 PDF 文档
关于此工具
比较PDF分析两个PDF文档并高亮显示它们之间的差异。非常适合审阅文档修订、检查合同更改或验证编辑。
以并排或叠加模式查看文档，差异会高亮显示。该工具识别文本更改、添加和删除。
所有比较都在您的浏览器中进行，确保您的文档保持私密。
Practical guidance before you use 比较PDF
Best for real document workflows
Use 比较PDF when you need a quick browser-based result without creating an account or sending routine documents through an unnecessary upload workflow. 合同审阅 is a common example: 比较合同版本以识别更改。
Privacy and file handling
EasyPDFNex prioritizes local processing in your browser. That means supported PDF operations run on your device, not in a public cloud queue. For sensitive files, review the output before sharing it, close the browser tab after downloading, and avoid processing documents you are not authorized to edit.
Quality checks after processing
After you 导出结果, open the result and check page order, text readability, signatures, links, and form fields. If the source file is scanned, encrypted, very large, or damaged, try a related workflow such as merge pdf, view metadata, edit pdf before repeating the task.
Start with a clean source file whenever possible. For 比较PDF, the first step is usually "上传两个PDF": 上传原始和修改后的PDF文档。 This simple preparation step prevents most failed exports, missing pages, and formatting surprises.
Editorial review note
This guidance is maintained by the EasyPDFNex editorial team and reviewed for practical PDF workflow accuracy. Tool pages are written to explain when a feature is useful, what to check before download, and where browser-based processing has limits.
如何使用
上传两个PDF
上传原始和修改后的PDF文档。
比较文档
以并排或叠加模式查看高亮显示的差异。
导出结果
下载比较报告或带注释的PDF。
使用场景
合同审阅
比较合同版本以识别更改。
文档修订
审阅文档版本之间的编辑。
质量保证
验证只进行了预期的更改。
常见问题
检测哪些类型的差异？
文本添加、删除、修改和格式更改。
可以比较扫描的文档吗？
扫描的文档应先进行OCR处理以进行文本比较。
有视觉比较吗？
是的，叠加模式显示页面之间的视觉差异。