Contract Comparison
Compare two documents side by side — AI-powered diff detection for contracts, legal documents, and PDFs.
What is Contract Comparison?
Contract Comparison is an AI-powered tool that analyzes two versions of a document and highlights every difference — added, deleted, or modified text — so you can review changes without manually scanning pages line by line.
It works on contracts, legal agreements, policy drafts, terms of service, and any text-based PDF. Upload an original and a revised copy; the tool returns a structured diff with similarity scoring and categorized change items.
How it works
- Upload the original document and the modified version (both must be PDF).
- The system extracts text from both files and runs an AI comparison pass.
- Results show a similarity percentage, a diff summary (total items, added, deleted, modified), and structured change details.
Comparison happens server-side. Large documents may take longer; the tool shows progress while the job runs.
Features
- Side-by-side comparison — view original and revised text in parallel.
- Similarity score — a percentage indicating how close the two documents are.
- Categorized diffs — changes grouped as added, deleted, or modified.
- Job history — past comparisons are saved and can be reopened from the History panel.
- Shareable results — each comparison gets a unique URL you can share with colleagues.
Supported formats
- Input: PDF (text-based; scanned PDFs should go through OCR first — see OCR Workbench).
- Output: Interactive diff view in the browser; raw diff data accessible via the comparison result page.
Notes
- Comparison quality depends on text extraction accuracy. Heavily scanned or image-heavy PDFs may produce incomplete results.
- The tool is optimized for text-level diffs in contracts and legal documents; it does not compare visual layout, signatures, or stamps.
- Uploaded files follow the same retention policy as other documents on the platform.
For the full interactive tool, visit Contract Comparison.