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比对PDF

并排比对两个版本的PDF文档，快速高亮显示修改、增删与格式差异。

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比对PDF

合同评审和版本迭代的利器。无需把商业合同上传到第三方平台，直接在本地发现每一处细微修改。

🔐 100% Private — Client-Side Execution

All processing happens inside your browser using WebAssembly and HTML5 Canvas. Zero file uploads, zero server tracking. Compliant with LGPD & GDPR.

常见问题解答

Can I compare every page at once?
Currently you compare one page pair at a time — pick the page number and click Compare. Step through pages to review the whole document.
What if the two PDFs have a different number of pages?
You can still compare any page that exists in both documents — the tool limits page selection to the shorter of the two.
Does this compare the text or just the visuals?
It compares the rendered visual appearance of each page pixel by pixel, so it catches any change — text, images, or layout.
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