Compare PDF
Compare two PDF documents side by side online free. Highlights additions (green), deletions (red), and changes. Perfect for contracts and legal docs. Try now!
or drag and drop
Supported: .pdf
About This Tool
Compare two PDF documents side by side online free. Highlights additions (green), deletions (red), and changes. Perfect for contracts and legal docs. Try now!
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.
How to Use
- 1Upload the original PDF version
- 2Upload the modified version
- 3Click "Compare" button
- 4View difference report with color highlighting
Key Features
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.