Compare multiple documents
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NoteThis feature is available only for Word documents, PowerPoint and Open Document presentations.
GroupDocs.Comparison allows you to compare more than two documents.
To compare several documents, follow these steps:
- Instantiate the 
Comparerobject. Specify the source document path or stream. - Call the 
add()method and specify the target document path or stream. Repeat this step for every target document. - Call the 
compare()method. 
The following code snippets show how to several documents:
const comparer = new groupdocs.comparison.Comparer(sourceFile);
comparer.add(targetFile1);
comparer.add(targetFile2);
comparer.add(targetFile3);
const resultPath = comparer.compare(resultInputStream);
The result is as follows:

const comparer = new groupdocs.comparison.Comparer(sourceInputStream);
comparer.add(targetInputStream1);
comparer.add(targetInputStream2);
comparer.add(targetInputStream3);
const resultPath = comparer.compare(resultInputStream);
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