/// <summary>
/// Converts DOCX file to a TXT file.
/// </summary>
public void ConvertDocxToTxt(string docxFilePath, string txtFilePath)
{
    using (Vintasoft.Imaging.ImageCollection images = new Vintasoft.Imaging.ImageCollection())
    {
        // open DOCX file
        images.Add(docxFilePath);

        try
        {
            // page number
            int pageNumber = 1;

            // document text content
            System.Text.StringBuilder content = new System.Text.StringBuilder();

            // for each page of DOCX file
            foreach (Vintasoft.Imaging.VintasoftImage image in images)
            {
                // write page number
                content.AppendFormat("\tPage Number: {0}", pageNumber++);
                content.AppendLine();
                content.AppendLine();

                // find text region metadata
                Vintasoft.Imaging.Metadata.TextRegionMetadata textRegionMetadata = 
                    image.Metadata.MetadataTree.FindChildNode<Vintasoft.Imaging.Metadata.TextRegionMetadata>();

                // if current page has text content
                if (textRegionMetadata != null)
                {
                    // get text region
                    Vintasoft.Imaging.Text.TextRegion textRegion = textRegionMetadata.GetTextRegion();

                    if (textRegion != null)
                    {
                        // if text region has text content
                        if (textRegion.TextContent != null)
                            // write page text content
                            content.Append(textRegion.TextContent);
                    }
                }

                // if page separator must be added between pages
                if (pageNumber < images.Count)
                {
                    content.AppendLine();
                    content.AppendLine();
                    content.AppendLine();
                }
            }

            // write DOCX file text content to a TXT file
            System.IO.File.WriteAllText(txtFilePath, content.ToString());
        }
        finally
        {
            // clear and dispose images
            images.ClearAndDisposeItems();
        }
    }
}

''' <summary>
''' Converts DOCX file to a TXT file.
''' </summary>
Public Sub ConvertDocxToTxt(docxFilePath As String, txtFilePath As String)
    Using images As New Vintasoft.Imaging.ImageCollection()
        ' open DOCX file
        images.Add(docxFilePath)

        Try
            ' page number
            Dim pageNumber As Integer = 1

            ' document text content
            Dim content As New System.Text.StringBuilder()

            ' for each page of DOCX file
            For Each image As Vintasoft.Imaging.VintasoftImage In images
                ' write page number
                content.AppendFormat(vbTab & "Page Number: {0}", System.Math.Max(System.Threading.Interlocked.Increment(pageNumber),pageNumber - 1))
                content.AppendLine()
                content.AppendLine()

                ' find text region metadata
                Dim textRegionMetadata As Vintasoft.Imaging.Metadata.TextRegionMetadata = image.Metadata.MetadataTree.FindChildNode(Of Vintasoft.Imaging.Metadata.TextRegionMetadata)()

                ' if current page has text content
                If textRegionMetadata IsNot Nothing Then
                    ' get text region
                    Dim textRegion As Vintasoft.Imaging.Text.TextRegion = textRegionMetadata.GetTextRegion()

                    If textRegion IsNot Nothing Then
                        ' if text region has text content
                        If textRegion.TextContent IsNot Nothing Then
                            ' write page text content
                            content.Append(textRegion.TextContent)
                        End If
                    End If
                End If

                ' if page separator must be added between pages
                If pageNumber < images.Count Then
                    content.AppendLine()
                    content.AppendLine()
                    content.AppendLine()
                End If
            Next

            ' write DOCX file text content to a TXT file
            System.IO.File.WriteAllText(txtFilePath, content.ToString())
        Finally
            ' clear and dispose images
            images.ClearAndDisposeItems()
        End Try
    End Using
End Sub