# DocumentType

Specifies the type of the currently opened document, such as "Microsoft Word for Windows". If an `Open` fails because the document type is not supported for viewing by Viewing SDK, this property still contains the document type until another call to the `Open` method is made, even though no document is currently opened. This property is read-only.

The document formats are defined in the `adinfo.h` header file.

## Returns

Type | Description
--- | ---
String | A description of the type of the currently opened document.

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