Review Document Revisions

Check what an editor or collaborator changed in a revised PDF.

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Original (A)

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浏览文件

Changed (B)

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浏览文件

你的文件永远不会离开你的设备。所有处理都在你的浏览器中本地进行。

Drop two PDFs to compare them page by page — side by side, as an onion-skin overlay, or with changed areas highlighted. Both files stay in your browser.

revisions tips

✏️

Drop the old and new versions to see edits at a glance instead of re-reading the whole document.

🔴

The Difference view reports the percentage of each page that changed.

↔️

Side-by-side is great for reading both versions together while you review.

🔒

Everything stays on your device.

工作原理

选择文件

Drop your file into the tool above. It stays entirely on your device — nothing is sent to any server.

处理

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

下载

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

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✓无需账号、邮箱或登录

✓文件永远不会离开你的设备

✓绝无文件大小限制

✓所有输出均无水印

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常见问题

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