Java MS Word-und PDF-Konvertierung Bild - (png/jpg)

Ich bin auf der Suche nach einem frei lib für die Konvertierung aus MS Word, WordPerfect, und PDF zu Bild.
Ist jemand bekannt, der gut ist, und dem neuesten Stand der JAVA-Bibliothek?

InformationsquelleAutor Peter Gorski | 2015-03-04
  1. 4

    Konvertieren von PDF in Bilder, die Sie verwenden können, PDFbox

    Folgende code ist der code zum konvertieren von PDF in Bilder, die mithilfe der pdfbox api

    import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.imageio.ImageIO;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDPageNode;


public List<String> generateImages(String pdfFile) throws IOException  {

     String imagePath = "/Users/$user/pdfimages/";
     List <String> fileNames = new ArrayList<String>();
      document = PDDocument.load(pdfFile);  ////load pdf   
      node = document.getDocumentCatalog().getPages(); /////get pages
      List<PDPage> kids = node.getKids();
      int count=0;
      for(PDPage page : kids) {   /////iterate
           BufferedImage img = page.convertToImage(BufferedImage.TYPE_INT_RGB,128);
           File imageFile = new File(imagePath+ count++ + ".jpg");
               ImageIO.write(img, "jpg", imageFile);
               fileNames.add(imageFile.getName());     
           }
           return fileNames;   
    }

    Auch anderen Bibliothek ApachePOI kann verwendet werden, konvertieren von PDF in Bilder

    Hier ist der Beispielcode

    import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.poi.hslf.model.Slide;
import org.apache.poi.hslf.usermodel.SlideShow;

public class JavaApplication12 {

public static void main(String[] args) throws FileNotFoundException, IOException {
FileInputStream is = new FileInputStream(“D:/Presentation1.ppt”);
SlideShow ppt = new SlideShow(is);
is.close();

Dimension pgsize = ppt.getPageSize();

Slide[] slide = ppt.getSlides();
for (int i = 0; i < slide.length; i++) {

BufferedImage img = new BufferedImage(pgsize.width, pgsize.height, 1);

Graphics2D graphics = img.createGraphics();
graphics.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
graphics.setRenderingHint(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
graphics.setRenderingHint(RenderingHints.KEY_INTERPOLATION,
RenderingHints.VALUE_INTERPOLATION_BICUBIC);
graphics.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
RenderingHints.VALUE_FRACTIONALMETRICS_ON);

graphics.setColor(Color.white);
graphics.clearRect(0, 0, pgsize.width, pgsize.height);
graphics.fill(new Rectangle2D.Float(0, 0, pgsize.width, pgsize.height));

//render
slide[i].draw(graphics);

//save the output
FileOutputStream out = new FileOutputStream(“slide-” + (i + 1) + “.png”);
javax.imageio.ImageIO.write(img, “png”, out);
out.close();
}
}
}

    Konvertieren MS Word Bilder können Sie auch Einblick in die Frage geschrieben hier
    Was nutzt JODConverter

    JODConverter automatisiert alle unterstützten Konvertierungen von OpenOffice.org einschließlich

    • Einem beliebigen format zu PDF
      o OpenDocument (Text, Tabellenkalkulation, Präsentation) zu PDF
      o Word zu PDF; Excel zu PDF, PowerPoint zu PDF
      o RTF zu PDF; WordPerfect PDF; ...
    • Und mehr
      o OpenDocument-Präsentation (odp), um Flash, PowerPoint bis Flash
      o RTF OpenDocument; WordPerfect zu OpenDocument
      o Alle in HTML-format (mit Einschränkungen)
      o Unterstützung für OpenOffice.org 1.0 und alten StarOffice-Formate
    InformationsquelleAutor Atish Bundhe
  2. 0
    //DOC to .jpeg

package org.doc;

import java.io.File;

import com.aspose.words.Document;
import com.aspose.words.ImageSaveOptions;
import com.aspose.words.SaveFormat;

public class DocToImage {

    public static void main(String[] args) {

        try {
                String sourcePath = "D://G.doc";
               Document doc = new Document(sourcePath);  
               ImageSaveOptions options = new ImageSaveOptions(SaveFormat.JPEG);  
               options.setJpegQuality(100);  
               options.setResolution(100);  
               options.setUseHighQualityRendering(true);  
               for (int i = 0; i < doc.getPageCount(); i++) {  
                    String imageFilePath = "E://"+ "images" + File.separator + "img_" + i + ".jpeg";  
                    options.setPageIndex(i);  
                    doc.save(imageFilePath, options);  
               }  
               System.out.println("Done...");
          } catch (Exception e) {  
               e.printStackTrace();  
          }  
    }

}


/*Here is the link from where we can download latest Aspose word jar.
http://www.aspose.com/java/word-component.aspx*/


//PDF to .png

package org.pdf;

import java.awt.Graphics;
import java.awt.GraphicsConfiguration;
import java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;
import java.awt.HeadlessException;
import java.awt.Image;
import java.awt.Rectangle;
import java.awt.Transparency;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.RandomAccessFile;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

import javax.imageio.ImageIO;
import javax.swing.ImageIcon;

import com.sun.pdfview.PDFFile;
import com.sun.pdfview.PDFPage;

public class PdfToImage {

    public static void main(final String[] args) throws Exception {

            String storagePath = "E://dd.pdf";

            //Image Save Directory
            String realPathtopdfImageSaveDir = "E://uploads/";

            RandomAccessFile raf = new RandomAccessFile(storagePath, "r");
            FileChannel channel = raf.getChannel();
            ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
            PDFFile pdffile = new PDFFile(buf);

            int numPgs = pdffile.getNumPages();

            for (int i = 0; i < numPgs; i++) {
                PDFPage page = pdffile.getPage(i);

                Rectangle rect = new Rectangle(0, 0, (int) page.getBBox().getWidth(), (int) page.getBBox().getHeight());

                Image img = page.getImage(rect.width, rect.height, rect, null, true, true);

                //save it as a file
                BufferedImage bImg = toBufferedImage(img);
                File yourImageFile = new File(realPathtopdfImageSaveDir +File.separator + "page_" + i + ".png");

                ImageIO.write(bImg, "png", yourImageFile);
            }

    }

    public static BufferedImage toBufferedImage(Image image) {
        if (image instanceof BufferedImage) {
            return (BufferedImage) image;
        }

        image = new ImageIcon(image).getImage();

        BufferedImage bimage = null;
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        try {
            int transparency = Transparency.OPAQUE;

            GraphicsDevice gs = ge.getDefaultScreenDevice();
            GraphicsConfiguration gc = gs.getDefaultConfiguration();
            bimage = gc.createCompatibleImage(image.getWidth(null), image.getHeight(null), transparency);
        } catch (HeadlessException e) {
            System.out.println("The system does not have a screen");
        }

        if (bimage == null) {
            int type = BufferedImage.TYPE_INT_RGB;
            bimage = new BufferedImage(image.getWidth(null), image.getHeight(null), type);
        }

        Graphics g = bimage.createGraphics();

        g.drawImage(image, 0, 0, null);
        g.dispose();

        return bimage;
    }
}

//jar required pdf-renderer.jar
    • Aspose word-Glas in nicht opensource, können Sie sich als trail-version für 30 Tage
    InformationsquelleAutor Sangram Badi
Schreibe einen Kommentar