OĞUZ EROLADS & AI

Contract Version Comparison | What Changed?

2 min read29 July 2026

When a contract goes through several rounds of revisions, “what exactly changed this time?” turns into a question that’s harder and harder to answer. Word’s built-in comparison tool works sometimes, but it chokes when the formatting breaks or when the file comes back as a PDF.

I compare the two versions line by line and list, in plain language, what was added, removed, and changed. The goal isn’t legal interpretation — it’s making sure you can clearly see exactly where the other side made a move.

Why it matters

Contract changes are usually made so they don’t stand out: a date gets pushed back a week, a figure in a penalty clause shifts, a phrase like “to a reasonable extent” gets slipped into a sentence to add ambiguity. These kinds of changes are hard to catch when read one line at a time, but their impact can be significant.

A comparison report puts these changes in front of you as a clear list — for you to decide on, or take to your lawyer.

What the report looks like

For each change, I give three things: the old text, the new text, and what it means in plain language. Something like “In Clause 4.2, the payment term was extended from 30 days to 45 days.” I don’t add commentary — I don’t say “this is in your favor or against you” — that judgment is yours or your lawyer’s to make.

I group minor formatting changes (typos, spacing) separately from changes that alter meaning, so nothing important gets buried.

I keep repeating this because mixing it up can have real consequences: I’m doing text comparison, not assessing legal validity or risk. For important contracts, I recommend taking this report to a lawyer for final sign-off.

How do we start? First, a free 20-30 minute intro call. We talk about what you want and what’s realistic. If it’s a fit, I send the scope and price in writing, then we begin. You can reach me from the contact page.

Frequently Asked Questions

Does this work on scanned PDFs?

Yes, if they can be converted to text. If the scan quality is low, I run OCR first to convert it to text — an extra step, but it rarely causes problems.

My lawyer will review it anyway — do I still need this?

It makes your lawyer’s job easier. When the changes are already listed, your lawyer spends their time evaluating rather than scanning — which usually works out cheaper overall.

How many versions can you compare?

If there are more than two versions, I can chain them all together and show what changed at each round separately.

How fast is delivery?

For an average-length contract, I typically deliver the same day or the next day.