> ## 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.

# Close Method of the FRDocument Object

> Close method of the FRDocument Object in the ABBYY FineReader Engine API — Releases all resources used by the FRDocument (memory and temporary files) and resets the object to the initial state from IEngine.CreateFRDocument.

This method releases all the resources that were used by the [FRDocument](/fine-reader/engine/api-reference/document-related-objects/frdocument) object (frees the memory, removes temporary files). The FRDocument object is returned to the initial state — the state of the object after its creation with the [IEngine::CreateFRDocument](/fine-reader/engine/api-reference/engine-object-iengine-interface/creation-methods/createlessobjectgreater-methods) method.

## Syntax

### C++

```cpp theme={null}
HRESULT Close();
```

### C\#

```csharp theme={null}
void Close();
```

### Visual Basic .NET

```vb theme={null}
Sub Close()
```

## Return values

This method has no specific return values. It returns the [standard return values of ABBYY FineReader Engine functions](/fine-reader/engine/api-reference/return-codes).

## Remarks

* We recommend that you use this method each time you have finished to work with the current FRDocument object. After the method is called, the object can be reused.
* In Windows: Calling this method for .NET is required. We recommend using it in finally blocks.

## See also

[FRDocument](/fine-reader/engine/api-reference/document-related-objects/frdocument)

[Engine](/fine-reader/engine/api-reference/engine-object-iengine-interface)