From pdf files to plain text in a WebMatrix site

using System;
using System.Collections.Generic;
using System.Web;
using java.util;
using org.apache.pdfbox.pdmodel;
using org.apache.pdfbox.util;

public class PdfFile
{

    public string Author { get; set; }

    public string Content { get; set; }

    public DateTime Created { get; set; }

    public string Creator { get; set; }

    public string Keywords { get; set; }

    public DateTime Modified { get; set; }

    public string Producer { get; set; }

    public string Subject { get; set; }

    public string Title { get; set; }

    public string Trapped { get; set; }

    public static DateTime CalendarToDateTime(Calendar calendar)
    {
        if (calendar != null)
        {
            int year = calendar.get(Calendar.YEAR);
            int month = calendar.get(Calendar.MONTH) + 1;
            int day = calendar.get(Calendar.DAY_OF_MONTH);
            int hour = calendar.get(Calendar.HOUR_OF_DAY);
            int minute = calendar.get(Calendar.MINUTE);
            int second = calendar.get(Calendar.SECOND);
            int millis = calendar.get(Calendar.MILLISECOND);

            var date = new DateTime(year, month, day, hour, minute, second, millis);

            return date;
        }

        else {
            return DateTime.MinValue;
        }
    }
    
    
    public PdfFile(string FilePath)
    {
        PDDocument PdfDoc = PDDocument.load(FilePath);
        PDDocumentInformation PdfInfo = PdfDoc.getDocumentInformation();

        Title = (PdfInfo.getTitle() ?? "");
        Subject = (PdfInfo.getSubject() ?? "");
        Author = (PdfInfo.getAuthor() ?? "");
        Creator = (PdfInfo.getCreator() ?? "");
        Producer = (PdfInfo.getProducer() ?? "");
        Keywords = (PdfInfo.getKeywords() ?? "");
        Trapped = (PdfInfo.getTrapped() ?? "");
        Created = CalendarToDateTime(PdfInfo.getCreationDate());
        Modified = CalendarToDateTime(PdfInfo.getModificationDate());

        PDFTextStripper stripper = new PDFTextStripper();
        Content = stripper.getText(PdfDoc);
    }
}