itext word怎么转成pdf

水深无声 2023-07-16 03:37 21阅读 0赞

import java.io.File;
     import java.io.FileInputStream;
     import java.io.FileOutputStream;
     import java.util.Iterator;
     import java.util.List;
     import javax.swing.JFileChooser;
     import javax.swing.filechooser.FileNameExtensionFilter;
     import org.apache.poi.xwpf.usermodel.XWPFDocument;
     import org.apache.poi.xwpf.usermodel.XWPFParagraph;
     import org.apache.poi.xwpf.usermodel.XWPFPicture;
     import org.apache.poi.xwpf.usermodel.XWPFPictureData;
     import org.apache.poi.xwpf.usermodel.XWPFRun;
     import com.itextpdf.text.Chunk;
     import com.itextpdf.text.BaseColor;
     import com.itextpdf.text.Document;
     import com.itextpdf.text.Font;
     import com.itextpdf.text.FontFactory;
     import com.itextpdf.text.Image;
     import com.itextpdf.text.pdf.PdfWriter;
     import com.itextpdf.text.PageSize;
    
     public class WordToPdfConverter{
     public static void main(String[] args){
       selectFiles();
     }
     public static void selectFiles(){
      JFileChooser chooser = new JFileChooser();
      FileNameExtensionFilter filter = new FileNameExtensionFilter("Microsoft Word 2007+", "docx");
      chooser.setFileFilter(filter);
      chooser.setMultiSelectionEnabled(true);
      int returnVal = chooser.showOpenDialog(null);
      if(returnVal == JFileChooser.APPROVE_OPTION) {
       File[] Files=chooser.getSelectedFiles();
       System.out.println("Please wait...");
                for( int i=0;i<Files.length;i++){     
                 String wordfile=Files[i].toString();            
                 convertWordToPdf(wordfile,wordfile.substring(0,wordfile.indexOf('.'))+".pdf");
                 }
       System.out.println("Conversion complete");
              }
     }
     public static void convertWordToPdf(String src, String desc){
      try{
      //create file inputstream object to read data from file 
      FileInputStream fs=new FileInputStream(src);
      //create document object to wrap the file inputstream object
      XWPFDocument doc=new XWPFDocument(fs); 
      //72 units=1 inch
      Document pdfdoc=new Document(PageSize.A4,72,72,72,72);
      //create a pdf writer object to write text to mypdf.pdf file
      PdfWriter pwriter=PdfWriter.getInstance(pdfdoc, new FileOutputStream(desc));
      //specify the vertical space between the lines of text
      pwriter.setInitialLeading(20);
      //get all paragraphs from word docx
      List<XWPFParagraph> plist=doc.getParagraphs();
      
      //open pdf document for writing
      pdfdoc.open();
      for (int i = 0; i < plist.size(); i++) {
       //read through the list of paragraphs
       XWPFParagraph pa = plist.get(i);
       //get all run objects from each paragraph
           List<XWPFRun> runs = pa.getRuns();
           //read through the run objects
           for (int j = 0; j < runs.size(); j++) {       
            XWPFRun run=runs.get(j);
            //get pictures from the run and add them to the pdf document
            List<XWPFPicture> piclist=run.getEmbeddedPictures();
            //traverse through the list and write each image to a file
            Iterator<XWPFPicture> iterator=piclist.iterator();
            while(iterator.hasNext()){
               XWPFPicture pic=iterator.next();
               XWPFPictureData picdata=pic.getPictureData();
               byte[] bytepic=picdata.getData(); 
               Image imag=Image.getInstance(bytepic);
              pdfdoc.add(imag);
                  
            }
            //get color code
            int color=getCode(run.getColor());
            //construct font object
            Font f=null;
            if(run.isBold() && run.isItalic())
             f=FontFactory.getFont(FontFactory.TIMES_ROMAN,run.getFontSize(),Font.BOLDITALIC, new BaseColor(color));
               else if(run.isBold())
             f=FontFactory.getFont(FontFactory.TIMES_ROMAN,run.getFontSize(),Font.BOLD, new BaseColor(color));
            else if(run.isItalic())
             f=FontFactory.getFont(FontFactory.TIMES_ROMAN,run.getFontSize(),Font.ITALIC, new BaseColor(color));
            else if(run.isStrike())
             f=FontFactory.getFont(FontFactory.TIMES_ROMAN,run.getFontSize(),Font.STRIKETHRU, new BaseColor(color));
            else
             f=FontFactory.getFont(FontFactory.TIMES_ROMAN,run.getFontSize(),Font.NORMAL, new BaseColor(color));
            //construct unicode string
            String text=run.getText(-1);
            byte[] bs;
            if (text!=null){
             bs=text.getBytes();
             String str=new String(bs,"UTF-8");
             //add string to the pdf document
             Chunk chObj1=new Chunk(str,f);
             pdfdoc.add(chObj1);
            }      
            
           }
           //output new line
           pdfdoc.add(new Chunk(Chunk.NEWLINE));
           }
          //close pdf document  
      pdfdoc.close();
      }catch(Exception e){e.printStackTrace();}
     } 
     public static int getCode(String code){
      int colorCode;
      if(code!=null)
       colorCode=Long.decode("0x"+code).intValue();
      else
       colorCode=Long.decode("0x000000").intValue();
      return colorCode;
     }
    
     }