How to compare two documents in Word and find the differences

The query “how to compare two documents in Word” usually means this: you have file A and file B, and you need to see the edits quickly. Below is how to do it with Word’s built-in tools, what to look at when comparing for differences, and when it is easier to upload both contract versions online.

How to compare two documents in Word (step by step)

In current versions of Microsoft Word, comparing two documents is built into the Review ribbon. The steps are:

1. Open Word (a blank document or any file is enough).
2. Go to the Review tab → the Compare group → Compare → Compare… again.
3. In Original document, select version A (the baseline you treat as the reference).
4. In Revised document, select version B (the counterparty’s edits or the new draft).
5. If needed, expand More: choose which changes to show (text, tables, headers and footers, and so on) and where to put the result — usually in a new document.
6. Click OK. Word creates a document with markup: deletions, insertions, and a revisions pane.

That is how you compare two Word documents for differences without third-party software. If the files are DOC or DOCX and both open correctly, this is often enough for short edits.

How to compare two Word documents for differences: what to look at

Highlighting in Word shows the text. In a contract, the meaning is what you cannot afford to miss:

• amounts, payment deadlines, and stages of work;
• penalties, liability caps, and unilateral withdrawal;
• clauses that disappeared entirely (not only “red” text);
• annexes and specifications if they sit in separate files.

It is worth walking the review pane and writing a separate list: topic → before → after. For the contract-specific workflow, see how to compare two versions of a contract.

Limits of comparing documents in Word

• PDF. You need a converter or recognized text first — otherwise Word compares poorly, or cannot be used at all.
• Renumbering and line breaks. A lot of noise: the document looks heavily changed while the meaning is almost the same — or the reverse.
• Meaning versus wording. Word will not explain that a shift in the payment deadline or a penalty changes a party’s position.
• Two different formats. DOCX plus PDF, or a scan plus text — built-in comparison is awkward.

When it is easier to compare two documents online

Comparing two contracts online makes sense when:

• you need a list of differences in the terms, not only character-level edits;
• the files are PDF, DOC, or DOCX and you do not want to deal with conversion;
• you need to send the result to a colleague or the counterparty (a report in PDF or DOC).

In DocumentCHEK you upload version A and version B on the compare two contracts page — the service highlights meaningful differences between the drafts. It does not replace a careful reading. It speeds up the first pass of “what changed.”

Comparing two documents and reviewing one contract are different tasks

• Compare two documents / two drafts — “how does B differ from A?”
• Check one contract for risks — “how dangerous is this draft on its own?”

First find the differences between the versions, then, if needed, assess the final text separately with a contract check.

Short checklist

Conclusion

You can compare two documents in Word with the built-in Review → Compare command: it is a fast way to find textual differences. For two drafts of a contract, especially in PDF or after several rounds of edits, an online comparison saves time on the “before / after” meaning.