test.cs

// split a PDF document into chunks
  public static List<string> Chunk(byte[] pdfDocument, int chunkSize, int overlap = 1)
  {
    // create a new ServerTextControl instance
    using (TXTextControl.ServerTextControl tx = new TXTextControl.ServerTextControl())
    {
      tx.Create();
  
      var loadSettings = new TXTextControl.LoadSettings
      {
        PDFImportSettings = TXTextControl.PDFImportSettings.GenerateParagraphs
      };
  
      // load the PDF document
      tx.Load(pdfDocument, TXTextControl.BinaryStreamType.AdobePDF, loadSettings);
  
      // remove line breaks
      string pdfText = tx.Text.Replace("\r\n", " ");
  
      // call the extracted chunk creation method
      return CreateChunks(pdfText, chunkSize, overlap);
    }
  }