What types of differences does it detect?

Detects: new text additions, deletion of existing text, word or sentence modifications. Does not detect formatting-only changes (like font change without text change).

Does it work with scanned PDFs?

File needs to contain digital text. Scanned files need OCR first to convert images to comparable text.

Can I compare more than two versions?

Currently you can compare only two versions at a time. To compare three versions, compare A with B then B with C.

Does it support Arabic comparison?

Yes, comparison supports Arabic, English, and any other language as long as the file contains digital text.

Can I export the comparison report?

Yes, you can download the comparison report as a PDF file with color highlighting to keep as reference.

edit

Compare PDF

Compare two PDF documents side by side online free. Highlights additions (green), deletions (red), and changes. Perfect for contracts and legal docs.

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What is this tool?

The PDF comparison tool detects differences between two versions of a document. Ideal for reviewing changes in contracts, legal documents, and reports, highlighting changes with clear colors (green for additions, red for deletions).

The tool compares text word by word and displays a detailed difference report. Very useful in legal and business environments where every change must be precisely tracked between document versions.

📊 Real Test: Comparing Two Contract Versions

We compared two contract versions (v1 and v2, 16 pages each) to discover changes.

Differences Found23 changes

Modified Paragraphs8 paragraphs

Deleted Paragraphs3 paragraphs

Added Paragraphs5 paragraphs

Comparison Time4.1 seconds

How to Use

1Upload the original PDF version
2Upload the modified version
3Click "Compare" button
4View difference report with color highlighting

Key Features

Word-by-word text comparison

Color-coded change highlighting

Additions in green

Deletions in red

Summary change report

Navigate between differences

Tips & Best Practices

💡For contracts: always compare with the last approved version to detect unauthorized changes.
💡If document is scanned: use OCR first on both versions then compare.
💡Different formatting (font, size) isn't considered changes — tool compares text only.
💡Save comparison report as reference — especially for legal documents.
💡If differences are too many: it may be easier to review the new version from scratch.

Frequently Asked Questions

What's Next?

→Edit differences found with Edit PDF.
→Merge compared versions using Merge PDF.
→Redact sensitive changes with Redact PDF.

Your files are safe and protected. All files are processed over an encrypted connection and automatically deleted from our servers within one hour.