> ## Documentation Index
> Fetch the complete documentation index at: https://docs.abbyy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# TextChange Object (ITextChange Interface)

This object represents a change made in the document text.

Properties

| Name          | Type                                                                                                                                                                                                          | Description                                                                                     |
| ------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------- |
| Application   | [Engine](/fine-reader/engine/api-reference/engine-object-iengine-interface), [read-only](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties#readonly_properties) | Returns the [Engine](/fine-reader/engine/api-reference/engine-object-iengine-interface) object. |
| EditLength    | [int](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only                                                                                             | Returns the case-sensitive Levenshtein distance between the original and the modified text.     |
| ReferenceText | [BSTR](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only                                                                                            | Returns the text in the original document.                                                      |
| UserText      | [BSTR](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties), read-only                                                                                            | Returns the modified text in the document copy.                                                 |

## Related objects

[Object Diagram](/fine-reader/engine/api-reference/object-diagram)

## Output parameter

This object is the output parameter of the [GetAsTextChange](/fine-reader/engine/api-reference/document-comparison-objects/change/getastextchange-method) method of the [Change](/fine-reader/engine/api-reference/document-comparison-objects/change) object.

## Samples

The object is used in the following:

* Linux and macOS: [Document Comparison](/fine-reader/engine/guided-tour/samples#documentcomparison_linux) sample
* Windows: [Document Comparison](/fine-reader/engine/guided-tour/samples#documentcomparison) demo tool

## See also

[Change](/fine-reader/engine/api-reference/document-comparison-objects/change)

[Working with Properties](/fine-reader/engine/guided-tour/advanced-techniques/programming-aspects/working-with-properties)

[Migration Guide from ScanDifFinder SDK to Document Comparison API](/fine-reader/engine/specifications/migration-guide-from-scandiffinder-sdk-to-document-comparison-api) (Win)