This demo uses the Word Processing Document API to compare Word documents.

The first two tabs display original and revised documents. Click Load original document and Load revised document in the right pane to open custom documents for comparison. Customize Comparison Settings, if necessary. The Display changes dropdown specifies comparison markup style: character-by-character or word-by-word. Click Compare documents to generate a document with revision markup. Review the output in the Result tab. Click Save the result to save the generated document.