免费 · PDF
比较 PDF.
在本地比较两个 PDF，查看页面预览、视觉差异和提取文本的变化。
比较 PDF
使用方法: 比较 PDF
输入数据或选择文件，调整设置并生成结果。复制或下载之前，请检查结果。
限制与支持格式
输入内容在您的设备上处理。货币换算仅发送货币代码，以获取带日期的参考汇率。
英语技术说明
20 MiB per PDF, 200 source pages each, up to 20 compared pages. Pages are matched by number; no OCR or semantic comparison.
Visible crop and page rotation are rendered in your browser. Magenta highlights pixels that exceed the chosen tolerance. Text differences use embedded PDF text; scanned text is not recognized. Missing pages are blank. The local HTML report includes previews and both extracted texts. Comparison does not establish document authenticity.
Compare two invoice versions to spot a changed amount and an altered graphic.