Compare PDF

Compare two versions of a PDF side by side and instantly see what changed between them.

Original Document

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Modified Document

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How to Compare PDF Files

Upload original and modified files

Select the original PDF and the new version you suspect has been changed.

Run comparison engine

Our tool meticulously scans both documents side-by-side to detect alterations.

Review highlighted changes

Analyze the visual report. Added, deleted, or modified text and formatting will be brightly highlighted.

Frequently Asked Questions

Is this useful for reviewing legal contracts?▼

Yes, it's well suited to catching undocumented changes or small wording tweaks between two versions of a contract or business proposal before you sign off on either one.

How does the comparison actually work?▼

The tool renders both documents page by page and checks for pixel-level differences, then builds a visual diff map highlighting exactly where content was added, removed, or changed.

Can I view the two documents side by side?▼

Yes, choose side-by-side view to see both versions at once, or overlay view to see the two pages stacked directly on top of each other for a closer look at small changes.

如果两个 PDF 的页数不同怎么办？▼

该工具会将仅存在于一个文档中的页面标记为另一文档中缺失的页面，因此添加或删除的页面会清晰显示，而不是默默地被跳过。

我可以下载更改的报告吗？▼

是的，比较完成后，您可以下载一份报告，总结整个文档中发现的差异。