Pdf to Docx conversion using C#

To convert a PDF file to a DOCX file using C#, you can use a third-party library like iTextSharp or Microsoft Word Interop. Here is an example using iTextSharp:

using iTextSharp.text.pdf;

using iTextSharp.text.pdf.parser;

using System.IO;

using System.Text;

namespace PDFToDocxConverter

{

    class Program

    {

        static void Main(string[] args)

        {

            // Input and output file paths

            string inputFilePath = @ "C:\Documents\input.pdf";

            string outputFilePath = @ "C:\Documents\output.docx";

            // Extract text from PDF

            string pdfText = ExtractTextFromPDF(inputFilePath);

            // Write text to DOCX

            WriteTextToDOCX(pdfText, outputFilePath);

        }

        static string ExtractTextFromPDF(string filePath)

        {

            StringBuilder text = new StringBuilder();

            using(PdfReader reader = new PdfReader(filePath))

            {

                for (int i = 1; i <= reader.NumberOfPages; i++)

                {

                    text.Append(PdfTextExtractor.GetTextFromPage(reader, i));

                }

            }

            return text.ToString();

        }

        static void WriteTextToDOCX(string text, string filePath)

        {

            // Create a new Word document

            Microsoft.Office.Interop.Word.Application wordApp = new Microsoft.Office.Interop.Word.Application();

            Microsoft.Office.Interop.Word.Document doc = wordApp.Documents.Add();

            // Insert the text into the document

            Microsoft.Office.Interop.Word.Range range = doc.Range();

            range.Text = text;

            // Save the document as a DOCX file

            doc.SaveAs2(filePath, Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatXMLDocument);

            // Close the document and Word application

            doc.Close();

            wordApp.Quit();

        }

    }

}

Note that you need to add a reference to the iTextSharp and Microsoft Word Interop libraries in your project. Also, the Microsoft Word Interop library requires that Microsoft Word is installed on the machine where the conversion is running.