import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.io.Writer;

import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.util.PDFTextStripper;

public class Pdf2word
{
public static void main(String[] args)
{
try
{
String pdfFile = "C:/xxxxx.pdf";
PDDocument doc = PDDocument.load(new File(pdfFile));
int pagenumber = doc.getNumberOfPages();
pdfFile = pdfFile.substring(0, pdfFile.lastIndexOf("."));
String fileName = pdfFile + ".doc";
File file = new File(fileName);
if (!file.exists())
{
file.createNewFile();
}
FileOutputStream fos = new FileOutputStream(fileName);
Writer writer = new OutputStreamWriter(fos, "UTF-8");
PDFTextStripper stripper = new PDFTextStripper();
stripper.setSortByPosition(true);// 排序
stripper.setStartPage(1);// 设置转换的开始页
stripper.setEndPage(pagenumber);// 设置转换的结束页
stripper.writeText(doc, writer);
writer.close();
doc.close();
System.out.println("pdf转换word成功！");
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

涉及jar包 pdfbox-1.8.2.jar 可在 http://www.java2s.com/Code/Jar/p/Downloadpdfbox182jar.htm 下载