Compare Design Proofs

Verify changes between two versions of a printable proof or layout.

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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.

design proofs tips

🎨

The pixel-difference view catches subtle visual changes — a moved logo, a colour tweak, a shifted margin.

🧅

Onion-skin overlay is perfect for checking alignment between two layout versions.

✅

A page that reports near-0% change confirms a proof matches the approved version.

🔒

Client artwork is compared in your browser only.

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.

为什么选择我们的？

✓完全免费——永远没有隐藏费用

✓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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🎓

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常见问题

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