public bool ExtractText(string inFileName, string outFileName)
{
StreamWriter streamWriter = (StreamWriter)null;
try
{
PdfReader pdfReader = new PdfReader(inFileName);
streamWriter = new StreamWriter(outFileName, false, Encoding.UTF8);
Console.Write("Processing: ");
int num1 = 68;
float num2 = (float)num1 / (float)pdfReader.NumberOfPages;
int num3 = 0;
float num4 = 0.0f;
for (int pageNum = 1; pageNum <= pdfReader.NumberOfPages; ++pageNum)
{
streamWriter.Write(PDFParser.ExtractTextFromPDFBytes(pdfReader.GetPageContent(pageNum)) + " ");
if ((double)num2 >= 1.0)
{
for (int index = 0; index < (int)num2; ++index)
{
Console.Write("#");
++num3;
}
}
else
{
num4 += num2;
if ((double)num4 >= 1.0)
{
for (int index = 0; index < (int)num4; ++index)
{
Console.Write("#");
++num3;
}
num4 = 0.0f;
}
}
}
if (num3 < num1)
{
for (int index = 0; index < num1 - num3; ++index)
{
Console.Write("#");
}
}
return(true);
}
catch
{
return(false);
}
finally
{
streamWriter?.Close();
}
}
private static string FindISBN(PdfReader pdf)
{
string isbn = "";
for (int pageNum = 1; pageNum <= 30; ++pageNum)
{
isbn = Book.CheckISBNPage(PDFParser.ExtractTextFromPDFBytes(pdf.GetPageContent(pageNum)));
if (!string.IsNullOrWhiteSpace(isbn))
{
break;
}
}
return(Book.IsISBNValid(isbn) ? isbn : "");
}
public static string ExtractTextFromPDFBytes(byte[] input)
{
if (input == null || input.Length == 0)
{
return("");
}
try
{
string str = "";
bool flag1 = false;
bool flag2 = false;
int num1 = 0;
char[] recent = new char[PDFParser._numberOfCharsToKeep];
for (int index = 0; index < PDFParser._numberOfCharsToKeep; ++index)
{
recent[index] = ' ';
}
for (int index1 = 0; index1 < input.Length; ++index1)
{
char ch = (char)input[index1];
if (flag1)
{
if (num1 == 0)
{
if (PDFParser.CheckToken(new string[2]
{
"TD",
"Td"
}, recent))
{
str += "\n\r";
}
else if (PDFParser.CheckToken(new string[3]
{
"'",
"T*",
"\""
}, recent))
{
str += "\n";
}
else if (PDFParser.CheckToken(new string[1]
{
"Tj"
}, recent))
{
str += " ";
}
}
int num2;
if (num1 == 0)
{
num2 = !PDFParser.CheckToken(new string[1]
{
"ET"
}, recent) ? 1 : 0;
}
else
{
num2 = 1;
}
if (num2 == 0)
{
flag1 = false;
str += " ";
}
else if (ch == '(' && num1 == 0 && !flag2)
{
num1 = 1;
}
else if (ch == ')' && num1 == 1 && !flag2)
{
num1 = 0;
}
else if (num1 == 1)
{
if (ch == '\\' && !flag2)
{
flag2 = true;
}
else
{
if (ch >= ' ' && ch <= '~' || ch >= '\x0080' && ch < 'ÿ')
{
str += ch.ToString();
}
flag2 = false;
}
}
}
for (int index2 = 0; index2 < PDFParser._numberOfCharsToKeep - 1; ++index2)
{
recent[index2] = recent[index2 + 1];
}
recent[PDFParser._numberOfCharsToKeep - 1] = ch;
int num3;
if (!flag1)
{
num3 = !PDFParser.CheckToken(new string[1]
{
"BT"
}, recent) ? 1 : 0;
}
else
{
num3 = 1;
}
if (num3 == 0)
{
flag1 = true;
}
}
return(str);
}
catch
{
return("");
}
}
