Java: utilizando el POI de apache, ¿cómo convertir ms word file a pdf?

Question

Al usar apache POI cómo convertir el archivo ms word al pdf?

Utilizo el siguiente código pero no funciona dando errores ¿Supongo que estoy importando las clases incorrectas?

import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.io.OutputStream; 

import org.apache.poi.hslf.record.Document; 
import org.apache.poi.hwpf.HWPFDocument; 
import org.apache.poi.hwpf.extractor.WordExtractor; 
import org.apache.poi.hwpf.usermodel.Paragraph; 
import org.apache.poi.hwpf.usermodel.Range; 
import org.apache.poi.poifs.filesystem.POIFSFileSystem; 


public class TestCon { 

    /** 
    * @param args 
    */ 
    public static void main(String[] args) { 
     // TODO Auto-generated method stub 

     POIFSFileSystem fs = null; 
     Document document = new Document(); 

     try { 
      System.out.println("Starting the test"); 
      fs = new POIFSFileSystem(new FileInputStream("/document/test2.doc")); 

      HWPFDocument doc = new HWPFDocument(fs); 
      WordExtractor we = new WordExtractor(doc); 

      OutputStream file = new FileOutputStream(new File("/document/test.pdf")); 

      PdfWriter writer = PdfWriter.getInstance(document, file); 

      Range range = doc.getRange(); 
      document.open(); 
      writer.setPageEmpty(true); 
      document.newPage(); 
      writer.setPageEmpty(true); 

      String[] paragraphs = we.getParagraphText(); 
      for (int i = 0; i < paragraphs.length; i++) { 

       org.apache.poi.hwpf.usermodel.Paragraph pr = range.getParagraph(i); 
       // CharacterRun run = pr.getCharacterRun(i); 
       // run.setBold(true); 
       // run.setCapitalized(true); 
       // run.setItalic(true); 
       paragraphs[i] = paragraphs[i].replaceAll("\\cM?\r?\n", ""); 
      System.out.println("Length:" + paragraphs[i].length()); 
      System.out.println("Paragraph" + i + ": " + paragraphs[i].toString()); 

      // add the paragraph to the document 
      document.add(new Paragraph(paragraphs[i])); 
      } 

      System.out.println("Document testing completed"); 
     } catch (Exception e) { 
      System.out.println("Exception during test"); 
      e.printStackTrace(); 
     } finally { 
         // close the document 
      document.close(); 
        } 
     } 
    } 

Answer 1

Conseguido lo resuelto

import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.io.OutputStream; 

import com.lowagie.text.Document; 
import com.lowagie.text.DocumentException; 
import com.lowagie.text.Paragraph; 
import com.lowagie.text.pdf.PdfWriter; 


import org.apache.poi.hwpf.HWPFDocument; 
import org.apache.poi.hwpf.extractor.WordExtractor; 

import org.apache.poi.hwpf.usermodel.Range; 
import org.apache.poi.poifs.filesystem.POIFSFileSystem; 


public class TestCon { 

    /** 
    * @param args 
    */ 
    public static void main(String[] args) { 
     // TODO Auto-generated method stub 

     POIFSFileSystem fs = null; 
     Document document = new Document(); 

     try { 
      System.out.println("Starting the test"); 
      fs = new POIFSFileSystem(new FileInputStream("D:/Resume.doc")); 

      HWPFDocument doc = new HWPFDocument(fs); 
      WordExtractor we = new WordExtractor(doc); 

      OutputStream file = new FileOutputStream(new File("D:/test.pdf")); 

      PdfWriter writer = PdfWriter.getInstance(document, file); 

      Range range = doc.getRange(); 
      document.open(); 
      writer.setPageEmpty(true); 
      document.newPage(); 
      writer.setPageEmpty(true); 

      String[] paragraphs = we.getParagraphText(); 
      for (int i = 0; i < paragraphs.length; i++) { 

       org.apache.poi.hwpf.usermodel.Paragraph pr = range.getParagraph(i); 
       // CharacterRun run = pr.getCharacterRun(i); 
       // run.setBold(true); 
       // run.setCapitalized(true); 
       // run.setItalic(true); 
       paragraphs[i] = paragraphs[i].replaceAll("\\cM?\r?\n", ""); 
      System.out.println("Length:" + paragraphs[i].length()); 
      System.out.println("Paragraph" + i + ": " + paragraphs[i].toString()); 

      // add the paragraph to the document 
      document.add(new Paragraph(paragraphs[i])); 
      } 

      System.out.println("Document testing completed"); 
     } catch (Exception e) { 
      System.out.println("Exception during test"); 
      e.printStackTrace(); 
     } finally { 
         // close the document 
      document.close(); 
        } 
     } 
    } 

Answer 2

Hay varios pasos aquí:

1. documento Leer palabra usando POI en una forma formato independiente del
2. Convert forma formato agnóstico en PDF
3. Comentario PDF

No sé si POI hará el paso 2 por usted. Yo recomendaría algo más, como iText.

Answer 3

Como nota al margen, también es posible leer el contenido de la marcha directamente de un flujo de contenido Word/Excel en lugar de leerlo desde el sistema de archivos y la serialización en el disco , por ejemplo al recuperar contenido de repositorios CMIS:

por ej.

//HWPFDocument docx = new HWPFDocument(fs); 
HWPFDocument docx = new HWPFDocument(doc.getContentStream().getStream()); 

(doc es de tipo org.apache.chemistry.opencmis.client.api.Document y en este caso he adaptado el código para recuperar un archivo de Word desde un repositorio de Alfresco mediante opencmis y lo transformó en PDF)

HTH

Answer 4

El a continuación el código que funcionó para mí:

Public class DocToPdfConverter{ 

public static void main(String[] args) { 

     String k=null; 
     OutputStream fileForPdf =null; 
     try { 

      String fileName="/document/test2.doc"; 
      //Below Code is for .doc file 
      if(fileName.endsWith(".doc")) 
      { 
      HWPFDocument doc = new HWPFDocument(new FileInputStream(
        fileName)); 
      WordExtractor we=new WordExtractor(doc); 
      k = we.getText(); 

      fileForPdf = new FileOutputStream(new File(
         "/document/DocToPdf.pdf")); 
      we.close(); 
      } 

      //Below Code for 

      else if(fileName.endsWith(".docx")) 
      { 
       XWPFDocument docx = new XWPFDocument(new FileInputStream(
         fileName)); 
       // using XWPFWordExtractor Class 
       XWPFWordExtractor we = new XWPFWordExtractor(docx); 
       k = we.getText(); 

       fileForPdf = new FileOutputStream(new File(
          "/document/DocxToPdf.pdf"));  
       we.close(); 
      } 



      Document document = new Document(); 
      PdfWriter.getInstance(document, fileForPdf); 

      document.open(); 

      document.add(new Paragraph(k)); 

      document.close(); 
      fileForPdf.close(); 



     } catch (Exception e) { 
      e.printStackTrace(); 
     } 
    } 
} 

Answer 5

Esto funcionó para mí: -

Fuente: - http://www.programcreek.com/java-api-examples/index.php?api=org.apache.poi.xwpf.converter.pdf.PdfConverter

package pdf; 

import java.io.File; 
import java.io.FileInputStream; 
import java.io.FileOutputStream; 
import java.io.OutputStream; 

import org.apache.poi.xwpf.converter.pdf.PdfConverter; 
import org.apache.poi.xwpf.converter.pdf.PdfOptions; 
import org.apache.poi.xwpf.usermodel.XWPFDocument; 

public class PDF { 
    public static void main(String[] args) throws Exception { 
      String inputFile="D:/TEST.docx"; 
      String outputFile="D:/TEST.pdf"; 
      if (args != null && args.length == 2) { 
      inputFile=args[0]; 
      outputFile=args[1]; 
      } 
      System.out.println("inputFile:" + inputFile + ",outputFile:"+ outputFile); 
      FileInputStream in=new FileInputStream(inputFile); 
      XWPFDocument document=new XWPFDocument(in); 
      File outFile=new File(outputFile); 
      OutputStream out=new FileOutputStream(outFile); 
      PdfOptions options=null; 
      PdfConverter.getInstance().convert(document,out,options); 
     } 
}