How to convert PDF document to Word document?

//Creates a new Word document.

WordDocument m_wordDocument = new WordDocument();

//Adds new section to the document.

IWSection section = m_wordDocument.AddSection();

//Sets the page margins to zero.

section.PageSetup.Margins.All = 0;

//Adds new paragraph to the section.

IWParagraph firstParagraph = section.AddParagraph();

SizeF defaultPageSize = new SizeF(m_wordDocument.LastSection.PageSetup.PageSize.Width, m_wordDocument.LastSection.PageSetup.PageSize.Height);

//Loads the PDF document from the given file path.

using (PdfLoadedDocument m_loadedDocument = new PdfLoadedDocument(m_filePath))

{

        for (int i = 0; I < m_loadedDocument.Pages.Count ; i++)

        {

              //Exports the PDF document page as image with the given size.

              using (Image image = m_loadedDocument.ExportAsImage(i, defaultPageSize,false))

              {

                   //Adds image to the paragraph

                   IWPicture picture = firstParagraph.AppendPicture(image);

                  //Sets width and height for the image.

                  picture.Width = image.Width;

                  picture.Height = image.Height;

              }

         }

};

//Saves the Word document

m_wordDocument.Save("Save.docx");

//Close the document.

m_wordDocument.Dispose();