protected void buttonExtractText_Click(object sender, EventArgs e)
{
// get the PDF file
string pdfFile = Server.MapPath("~") + @"\DemoFiles\Pdf\InputPdf.pdf";
// create the PDF text extractor
PdfTextExtract pdfTextExtract = new PdfTextExtract();
// set a demo serial number
pdfTextExtract.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";
// set the text extraction mode
pdfTextExtract.TextExtractMode = GetTextExtractMode();
int fromPdfPageNumber = int.Parse(textBoxFromPage.Text);
int toPdfPageNumber = textBoxToPage.Text.Length > 0 ? int.Parse(textBoxToPage.Text) : 0;
// extract the text from a range of pages of the PDF document
string text = pdfTextExtract.ExtractText(pdfFile, fromPdfPageNumber, toPdfPageNumber);
// get UTF-8 bytes
byte[] utf8Bytes = Encoding.UTF8.GetBytes(text);
// the UTF-8 marker
byte[] utf8Marker = new byte[] { 0xEF, 0xBB, 0xBF };
// the text document bytes with UTF-8 marker followed by UTF-8 bytes
byte[] bytes = new byte[utf8Bytes.Length + utf8Marker.Length];
Array.Copy(utf8Marker, 0, bytes, 0, utf8Marker.Length);
Array.Copy(utf8Bytes, 0, bytes, utf8Marker.Length, utf8Bytes.Length);
// inform the browser about the data format
HttpContext.Current.Response.AddHeader("Content-Type", "text/plain; charset=UTF-8");
// let the browser know how to open the text document and the text document name
HttpContext.Current.Response.AddHeader("Content-Disposition",
String.Format("{0}; filename=ExtractedText.txt; size={1}", "attachment", bytes.Length.ToString()));
// write the text buffer to HTTP response
HttpContext.Current.Response.BinaryWrite(bytes);
// call End() method of HTTP response to stop ASP.NET page processing
HttpContext.Current.Response.End();
}
public ActionResult ExtractText(IFormCollection collection)
{
m_formCollection = collection;
// get the PDF file
string pdfFile = m_hostingEnvironment.ContentRootPath + @"\wwwroot" + @"\DemoFiles\Pdf\InputPdf.pdf";
// create the PDF text extractor
PdfTextExtract pdfTextExtract = new PdfTextExtract();
// set a demo serial number
pdfTextExtract.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";
// set the text extraction mode
pdfTextExtract.TextExtractMode = GetTextExtractMode();
int fromPdfPageNumber = int.Parse(collection["textBoxFromPage"]);
int toPdfPageNumber = collection["textBoxToPage"][0].Length > 0 ? int.Parse(collection["textBoxToPage"]) : 0;
// extract the text from a range of pages of the PDF document
string text = pdfTextExtract.ExtractText(pdfFile, fromPdfPageNumber, toPdfPageNumber);
// get UTF-8 bytes
byte[] utf8Bytes = Encoding.UTF8.GetBytes(text);
// the UTF-8 marker
byte[] utf8Marker = new byte[] { 0xEF, 0xBB, 0xBF };
// the text document bytes with UTF-8 marker followed by UTF-8 bytes
byte[] bytes = new byte[utf8Bytes.Length + utf8Marker.Length];
Array.Copy(utf8Marker, 0, bytes, 0, utf8Marker.Length);
Array.Copy(utf8Bytes, 0, bytes, utf8Marker.Length, utf8Bytes.Length);
FileResult fileResult = new FileContentResult(bytes, "text/plain; charset=UTF-8");
fileResult.FileDownloadName = "ExtractedText.txt";
return(fileResult);
}