C#编程读取文档Doc、Docx及Pdf内容的方法

/*
 作者：GhostBear
 */
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Text.RegularExpressions;
using org.pdfbox.pdmodel;
using org.pdfbox.util;
using Microsoft.Office.Interop.Word;
namespace TestPdfReader
{
 class Program
 {
 static void Main(string[] args)
 {
  //PDF
  PDDocument doc = PDDocument.load(@"C:resume.pdf");
  PDFTextStripper pdfStripper = new PDFTextStripper();
  string text = pdfStripper.getText(doc);
  string result = text.Replace('t',' ').Replace('n',' ').Replace('r',' ').Replace(" ","");
  Console.WriteLine(result);
  //Doc,Docx
  object docPath = @"C:resume.doc";
  object docxPath = @"C:resume.docx";
  object missing=System.Reflection.Missing.Value;
  object readOnly=true;
  Application wordApp;
  wordApp = new Application();
  Document wordDoc = wordApp.Documents.Open(ref docPath,ref missing,ref readOnly,ref missing);
  string text2 = FilterString(wordDoc.Content.Text);
  wordDoc.Close(ref missing,ref missing);
  wordApp.Quit(ref missing,ref missing);
  Console.WriteLine(text2);
  Console.Read();
  
 }
 private static string FilterString(string input)
 {
  return Regex.Replace(input,@"(a|t|n|s+)","");
 }
 }
}