PDF操作，PDFbox.jar(全套7个）

import java.awt.Color; import java.awt.FlowLayout; import java.awt.Graphics; import java.awt.Image; import java.awt.Toolkit; import java.awt.image.BufferedImage; import java.io.FileInputStream; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InputStream; import java.util.ArrayList; import javax.imageio.ImageIO; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; public class Main { //组件 JFrame jf ; ArrayList<BufferedImage> bis=new ArrayList<BufferedImage>(); int index=0; Image im; MyListener listener; JLabel jl; JPanel jp=new JPanel() { /** * */ private static final long serialVersionUID = 1L; public void paint(Graphics g) { super.paint(g); if(bis.size()==0) { previous.setEnabled(false); next.setEnabled(false); } else { next.setEnabled(true); convert.setEnabled(true); im=listener.tool.getImage(bis.get(index), jp); g.drawImage(im,listener.tool.x,listener.tool.y,null); jl.setText(index+1+"/"+listener.tool.sum); if(index==0) { previous.setEnabled(false); } if(index>0&&index<bis.size()) { previous.setEnabled(true); next.setEnabled(true); } if(index==bis.size()-1) { next.setEnabled(false); } } } }; JButton open; JButton next; JButton previous; // JButton save; JButton convert; //构造方法 public Main() { //JFrame设置 jf=new JFrame("小型PDF处理器"); jf.setSize(600,500); // jf.setExtendedState(JFrame.MAXIMIZED_BOTH); jf.setLocationRelativeTo(null); jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); jf.setIconImage(Toolkit.getDefaultToolkit().getImage("pdf图标.jpg")); //JPanel设置 jp.setBackground(Color.white); jp.setSize(jf.getWidth(), jf.getHeight()); jf.add(jp,"Center"); //按钮设置 open=new JButton("打开"); previous=new JButton("上一页"); next=new JButton("下一页"); previous.setEnabled(false); next.setEnabled(false); // save=new JButton("保存"); convert=new JButton("转化为图片"); // convert.setEnabled(false); listener=new MyListener(); listener.setMain(this); open.addActionListener(listener); previous.addActionListener(listener); next.addActionListener(listener); convert.addActionListener(listener); //标签 jl=new JLabel(); JPanel jp2=new JPanel(); jp2.add(jl); jp2.add(open); jp2.add(previous); jp2.add(next); jp2.add(convert); jf.add(jp2, "North"); ((FlowLayout)(jp2.getLayout())).setHgap(36); //显示JFrame jf.setVisible(true); } public static void main(String[] args) { Main m=new Main(); } }