public ActionResult SearchText(IFormCollection collection)
{
// get the PDF file
string pdfFile = m_hostingEnvironment.ContentRootPath + @"\wwwroot" + @"\DemoFiles\Pdf\InputPdf.pdf";
// get the text to search
string textToSearch = collection["textBoxTextToSearch"];
// create the PDF text extractor
PdfTextExtract pdfTextExtract = new PdfTextExtract();
// set a demo serial number
pdfTextExtract.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";
int fromPdfPageNumber = int.Parse(collection["textBoxFromPage"]);
int toPdfPageNumber = collection["textBoxToPage"][0].Length > 0 ? int.Parse(collection["textBoxToPage"]) : 0;
// search the text in PDF document
PdfTextSearchItem[] searchTextInstances = pdfTextExtract.SearchText(pdfFile, textToSearch,
fromPdfPageNumber, toPdfPageNumber, collection["checkBoxMatchCase"].Count > 0, collection["checkBoxMatchWholeWord"].Count > 0);
// load the PDF file to highlight the searched text
PdfDocument pdfDocument = PdfDocument.FromFile(pdfFile);
// set a demo serial number
pdfDocument.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";
// highlight the searched text in PDF document
foreach (PdfTextSearchItem searchTextInstance in searchTextInstances)
{
PdfRectangle pdfRectangle = new PdfRectangle(searchTextInstance.BoundingRectangle);
// set rectangle color and opacity
pdfRectangle.BackColor = Color.Yellow;
pdfRectangle.Opacity = 30;
// highlight the text
pdfDocument.Pages[searchTextInstance.PdfPageNumber - 1].Layout(pdfRectangle);
}
// write the modified PDF document
try
{
// write the PDF document to a memory buffer
byte[] pdfBuffer = pdfDocument.WriteToMemory();
FileResult fileResult = new FileContentResult(pdfBuffer, "application/pdf");
fileResult.FileDownloadName = "SearchText.pdf";
return(fileResult);
}
finally
{
pdfDocument.Close();
}
}
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);
}
protected void buttonSearchText_Click(object sender, EventArgs e)
{
// get the PDF file
string pdfFile = Server.MapPath("~") + @"\DemoFiles\Pdf\InputPdf.pdf";
// get the text to search
string textToSearch = textBoxTextToSearch.Text;
// create the PDF text extractor
PdfTextExtract pdfTextExtract = new PdfTextExtract();
// set a demo serial number
pdfTextExtract.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";
int fromPdfPageNumber = int.Parse(textBoxFromPage.Text);
int toPdfPageNumber = textBoxToPage.Text.Length > 0 ? int.Parse(textBoxToPage.Text) : 0;
// search the text in PDF document
PdfTextSearchItem[] searchTextInstances = pdfTextExtract.SearchText(pdfFile, textToSearch,
fromPdfPageNumber, toPdfPageNumber, checkBoxMatchCase.Checked, checkBoxMatchWholeWord.Checked);
// load the PDF file to highlight the searched text
PdfDocument pdfDocument = PdfDocument.FromFile(pdfFile);
// set a demo serial number
pdfDocument.SerialNumber = "YCgJMTAE-BiwJAhIB-EhlWTlBA-UEBRQFBA-U1FOUVJO-WVlZWQ==";
// highlight the searched text in PDF document
foreach (PdfTextSearchItem searchTextInstance in searchTextInstances)
{
PdfRectangle pdfRectangle = new PdfRectangle(searchTextInstance.BoundingRectangle);
// set rectangle color and opacity
pdfRectangle.BackColor = Color.Yellow;
pdfRectangle.Opacity = 30;
// highlight the text
pdfDocument.Pages[searchTextInstance.PdfPageNumber - 1].Layout(pdfRectangle);
}
// write the modified PDF document
try
{
// write the PDF document to a memory buffer
byte[] pdfBuffer = pdfDocument.WriteToMemory();
// inform the browser about the binary data format
HttpContext.Current.Response.AddHeader("Content-Type", "application/pdf");
// let the browser know how to open the PDF document and the file name
HttpContext.Current.Response.AddHeader("Content-Disposition", String.Format("attachment; filename=SearchText.pdf; size={0}",
pdfBuffer.Length.ToString()));
// write the PDF buffer to HTTP response
HttpContext.Current.Response.BinaryWrite(pdfBuffer);
// call End() method of HTTP response to stop ASP.NET page processing
HttpContext.Current.Response.End();
}
finally
{
pdfDocument.Close();
}
}
public MainWindow()
{
InitializeComponent();
// Updator.Download();
// string path = ("2012JUN_Q.pdf");
/* foreach (var path in Directory.EnumerateFiles(AppContext.BaseDirectory, "*.pdf"))
* {
* if (path.Contains("MS")) continue;
* var t = PdfTextExtract.dumpQuestions(path);
* Dispatcher.BeginInvoke(new Action(() =>
* {
* tb.Text = t;
* }));
*
* File.WriteAllText(path + ".csv", t);
* }*/
File.WriteAllText("January 2009 MS - Unit 1 Edexcel Physics A-level" + ".txt", PdfTextExtract.pdfText("January 2009 MS - Unit 1 Edexcel Physics A-level.pdf"));
// string path = ("January 2009 QP - Unit 1 Edexcel Physics A-level.pdf");
// var t = PdfTextExtract.dumpQuestions(path);
// tb.Text= t;
// File.WriteAllText(path + ".csv", t);
}
public static string dumpQuestions(string path)
{
PdfTextExtract.dumpMarkScheme(path.Replace("QP", "MS"));
var list = dataMS;
PdfReader reader = new PdfReader(path);
StringBuilder text = new StringBuilder();
string t = "";
int questionNo = 0;
int tempNo = 0;
int pages = 3;
Debug.Print(path.Substring(0, 4));
text.AppendLine("questionNo,questionAqua,questionSmall,question,markScheme,score,Topics");
while (t.IndexOf("section", StringComparison.CurrentCultureIgnoreCase) < 0 || t.IndexOf("answer all", StringComparison.CurrentCultureIgnoreCase) < 0)
{
if (pages >= 20)
{
return("");
}
t = iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(reader, pages);
pages++;
}
for (int page = pages - 1; page <= reader.NumberOfPages; page++)
{
t = iTextSharp.text.pdf.parser.PdfTextExtractor.GetTextFromPage(reader, page);
if (t.Contains("formulae") || t.Contains("BLANK PAGE"))
{
continue;
}
t = Regex.Replace(t, @"(\\n\*.*\*\\n)", @"");
string temp = t.Substring(0, 30);
try
{
//www\.dynamicpapers\.com\\n(1[0-9]|2[0-9]|24)
// var r = Regex.Match(temp, @"((1[0-9]|2[0-9]|24))(?s).*\)");
var r = Regex.Match(temp, @"(1[0-9]|2[0-9]|24)");
questionNo = int.Parse(r.Groups[1].Value.ToString());
// System.Diagnostics.Debug.Print(questionNo.ToString());
}
catch
{
if (t.IndexOf("section", StringComparison.CurrentCultureIgnoreCase) < 0 || t.IndexOf("answer all", StringComparison.CurrentCultureIgnoreCase) < 0)
{
if (!temp.Contains("(i)") || !temp.Contains("ii") || !temp.Contains("(b)") || !temp.Contains("(c)") || !temp.Contains("(d)"))
{
try
{
var r = Regex.Match(temp, @"((1[0-9]|2[0-9]|24))(?s).*[\\n\*.*\*\\n]");
questionNo = int.Parse(r.Groups[1].Value.ToString());
if (questionNo - tempNo >= 2 && tempNo != 0)
{
questionNo = ++tempNo;
}
}
catch
{
questionNo = tempNo;
}
}
else
{
questionNo = tempNo;
}
}
else
{
var r = Regex.Match(t, @"((1[0-9]|2[0-9]|24))(?s).*[\\n\*.*\*\\n]");
questionNo = int.Parse(r.Groups[1].Value.ToString());
}
}
// if (tempNo > questionNo && questionNo-tempNo <= 2)
// {
// questionNo = tempNo;
// }
tempNo = questionNo;
foreach (var q in getData(questionNo, t))
{
text.AppendLine(q.ToString());
}
}
reader.Close();
return(text.ToString());
}
