使用pdfbox解析pdf文档信息(属性，内容，图片)

Java代码 

 import java.io.File;
 import java.io.FileInputStream;
 import java.io.InputStream;
 import java.text.SimpleDateFormat;
 import java.util.Calendar;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;

 import org.apache.pdfbox.pdmodel.PDDocument;
 import org.apache.pdfbox.pdmodel.PDDocumentCatalog;
 import org.apache.pdfbox.pdmodel.PDDocumentInformation;
 import org.apache.pdfbox.pdmodel.PDPage;
 import org.apache.pdfbox.pdmodel.PDResources;
 import org.apache.pdfbox.pdmodel.graphics.xobject.PDXObjectImage;
 import org.apache.pdfbox.util.PDFTextStripper;

 /**
  * 使用 pdfbox 解析pdf 文档信息
  * @author longhuiping
  *
  */
 public class PDFParse {

     public static final String DATE_FORMAT = "yyyy-MM-dd HH:mm:ss";

     /**
      * 解析pdf文档信息
      * @param pdfPath   pdf文档路径
      * @throws Exception
      */
     public static void pdfParse( String pdfPath, String imgSavePath ) throws Exception
     {
         InputStream input = null;
         File pdfFile = new File( pdfPath );
         PDDocument document = null;
         try{
             input = new FileInputStream( pdfFile );
             //加载 pdf 文档
             document = PDDocument.load( input );

             /** 文档属性信息 **/
             PDDocumentInformation info = document.getDocumentInformation();
             System.out.println( "标题:" + info.getTitle() );
             System.out.println( "主题:" + info.getSubject() );
             System.out.println( "作者:" + info.getAuthor() );
             System.out.println( "关键字:" + info.getKeywords() );

             System.out.println( "应用程序:" + info.getCreator() );
             System.out.println( "pdf 制作程序:" + info.getProducer() );

             System.out.println( "作者:" + info.getTrapped() );

             System.out.println( "创建时间:" + dateFormat( info.getCreationDate() ));
             System.out.println( "修改时间:" + dateFormat( info.getModificationDate()));


             //获取内容信息
             PDFTextStripper pts = new PDFTextStripper();
             String content = pts.getText( document );
             System.out.println( "内容:" + content );


             /** 文档页面信息 **/
             PDDocumentCatalog cata = document.getDocumentCatalog();
             List pages = cata.getAllPages();
             int count = 1;
             for( int i = 0; i < pages.size(); i++ )
             {
                 PDPage page = ( PDPage ) pages.get( i );
                 if( null != page )
                 {
                     PDResources res = page.findResources();

                     //获取页面图片信息
                     Map imgs = res.getImages();
                     if( null != imgs )
                     {
                         Set keySet = imgs.keySet();
                         Iterator it = keySet.iterator();
                         while( it.hasNext() )
                         {
                             Object obj =  it.next();
                             PDXObjectImage img = ( PDXObjectImage ) imgs.get( obj );
                             img.write2file( imgSavePath + count );
                             count++;
                         }
                     }
                 }
             }
         }catch( Exception e)
         {
             throw e;
         }finally{
             if( null != input )
                 input.close();
             if( null != document )
                 document.close();
         }
     }

     /**
      * 获取格式化后的时间信息
      * @param dar   时间信息
      * @return
      * @throws Exception
      */
     public static String dateFormat( Calendar calendar ) throws Exception
     {
         if( null == calendar )
             return null;
         String date = null;
         try{
             String pattern = DATE_FORMAT;
             SimpleDateFormat format = new SimpleDateFormat( pattern );
             date = format.format( calendar.getTime() );
         }catch( Exception e )
         {
             throw e;
         }
         return date == null ? "" : date;
     }

     public static void main( String [] args ) throws Exception{
         pdfParse("f:/pdf/1.pdf","f:/pdfimg/");
     }
 }