Java PDFFile类代码示例

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
public static List<BufferedImage> readPdfAsImages(File pdfFile) {
	try {
		RandomAccessFile raf = new RandomAccessFile(pdfFile, "r");
		FileChannel channel = raf.getChannel();
		ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
		PDFFile pdf = new PDFFile(buf);

		List<BufferedImage> images = new ArrayList<BufferedImage>();
		for (int pageNumber = 1; pageNumber <= pdf.getNumPages(); ++pageNumber) {
			images.add(readPage(pdf, pageNumber));
		}

		raf.close();
		return images;
	}
	catch (IOException e) {
		throw new RuntimeException(e);
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
/**
 * 
 * @param pdfFile
 *          Path to the pdf file.
 * @param pageNumber
 *          One-based page number to read
 * @return
 */
public static BufferedImage readPdfPageAsImage(File pdfFile, int pageNumber) {
	if (pageNumber < 1)
		throw new RuntimeException("page numbering starts with 1; '" + pageNumber + "' given");
	try {
		RandomAccessFile raf = new RandomAccessFile(pdfFile, "r");
		FileChannel channel = raf.getChannel();
		ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
		PDFFile pdf = new PDFFile(buf);
		BufferedImage image = readPage(pdf, pageNumber);
		raf.close();
		return image;
	}
	catch (IOException e) {
		throw new RuntimeException(e);
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
@Override
public Image toImage(byte[] input, int pageNumber) throws IOException {
	
	File file = File.createTempFile("pdf2img", "pdf");
	
	try{
		copy(input,file);
		PDFFile pdffile = toPDFFile(file);
		
        // draw a single page to an image
		PDFPage page = pdffile.getPage(pageNumber);
        
        return toImage(page,(int)page.getBBox().getWidth(),(int)page.getBBox().getHeight(),false);
      
	
	}
	finally{
		deleteEL(file);
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
@Override
public void writeImages(byte[] input, Set pages, Resource outputDirectory,
		String prefix, String format, int scale, boolean overwrite,
		boolean goodQuality, boolean transparent) throws PageException,
		IOException {
	

	File file = File.createTempFile("pdf2img", "pdf");
	try{
		copy(input,file);
		PDFFile pdf = toPDFFile(file);
	
		Resource res;
		int count = pdf.getNumPages();
		 
		for(int page=1;page<=count;page++) {
			if(pages!=null && !pages.contains(Integer.valueOf(page)))continue;
			res=createDestinationResource(outputDirectory,prefix,page,format,overwrite);
			//res=outputDirectory.getRealResource(prefix+"_page_"+page+"."+format);
			writeImage(pdf,page,res,format,scale,overwrite,goodQuality, transparent);
		}
	}
	finally{
		deleteEL(file);
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
private static void writeImage(PDFFile pdf, int pageNumber, Resource destination,String format, int scale,
		boolean overwrite, boolean goodQuality, boolean transparent) throws PageException, IOException {
	
	PDFPage page = pdf.getPage(pageNumber);
	
	if(scale<1) throw new ExpressionException("scale ["+scale+"] should be at least 1");
	
	int width = (int)page.getBBox().getWidth();
	int height = (int)page.getBBox().getHeight();
	if(scale!=100){
		double s=(scale)/100d;
		width=	(int)((width)*s);
		height=	(int)((height)*s);
		
		
	}
	Image img=toImage(page, width, height,transparent);
	img.writeOut(destination,format, overwrite, 1f);
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
/**
         * get the next postscript "word".  This is basically the next
         * non-whitespace block between two whitespace delimiters.
         * This means that something like " [2 4 53]" will produce
         * three items, while " [2 4 56 ]" will produce four.
         */
        public String readThing() {
            // skip whitespace
//            System.out.println("PAParser: whitespace: \"");
            while (PDFFile.isWhiteSpace(data[loc])) {
//                System.out.print (new String(data, loc, 1));
                loc++;
            }
//            System.out.print("\": thing: ");
            // read thing
            int start = loc;
            while (!PDFFile.isWhiteSpace(data[loc])) {
                loc++;
                if (!PDFFile.isRegularCharacter(data[loc])) {
                    break;  // leave with the delimiter included
                }
            }
            String s = new String(data, start, loc - start);
//            System.out.println(": Read: "+s);
            return s;
        }
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
/**
 * Creates a new ThumbPanel based on a PDFFile. The file may be null.
 * Automatically starts rendering thumbnails for that file.
 */
public ThumbPanel(PDFFile file) {
	super();
	this.file = file;
	if (file != null) {
		int count = file.getNumPages();
		images = new Image[count];
		xloc = new int[count];
		setPreferredSize(new Dimension(defaultWidth, 200));
		addMouseListener(new MouseAdapter() {

			@Override
			public void mouseClicked(MouseEvent evt) {
				handleClick(evt.getX(), evt.getY());
			}
		});
		anim = new Thread(this);
		anim.setName(getClass().getName());
		anim.start();
	} else {
		images = new Image[0];
		setPreferredSize(new Dimension(defaultWidth, 200));
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
private void initialize() throws FileNotFoundException, IOException, MalformedURLException, URISyntaxException, Exception {
    
    pdfPanel.addMouseListener(actionListener);
    pdfPanel.addMouseMotionListener(actionListener);
    pdfPanel.addKeyListener(actionListener);
    pdfPanel.setComponentPopupMenu(menu);
    
    byte[] pdfBytes = null;
    if(DataURL.isDataURL(source)) {
        pdfBytes = new DataURL(source).getData();
    }
    else {
        URL sourceURL = new URL(source);
        if("file".equalsIgnoreCase(sourceURL.getProtocol())) {
            pdfBytes = Files.getByteArray(new File(sourceURL.toURI()));
        }
        else {
            pdfBytes = IObox.fetchUrl(sourceURL);
        }
    }
    
    if(pdfBytes != null) {
        pdfFile = new PDFFile(ByteBuffer.wrap(pdfBytes));
        if(pdfFile != null) {
            pageCount = pdfFile.getNumPages();
            if(pageCount > 0) {
                setPageText.invoke(1, pageCount);
                pdfPanel.changePage(pdfFile.getPage(0));
            }
            else {
                throw new Exception("PDF has no pages at all. Can't view.");
            }          
        }
    }
    else {
        throw new Exception("Can't read data out of locator resource.");
    }
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
public static Image readPDF(File f) {
	try {
		RandomAccessFile raf = new RandomAccessFile(f, "r");
		FileChannel channel = raf.getChannel();
		ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
		PDFFile pdf = new PDFFile(buf);
		PDFPage page = pdf.getPage(0);
		Rectangle rect = new Rectangle(0, 0, (int) page.getBBox().getWidth(), (int) page.getBBox().getHeight());
		Image image = page.getImage(rect.width, rect.height, rect, null, true, true);
		raf.close();
		return image;
	} catch (Exception e) {
		e.printStackTrace();
		return null;
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
private void initialize(byte[] pdfContent, String jobName,String nomeImpressora) throws IOException, PrinterException {
    ByteBuffer bb = ByteBuffer.wrap(pdfContent);

    PDFFile pdfFile = new PDFFile(bb);
    PDFPrintPage pages = new PDFPrintPage(pdfFile);

    PrintService[] pservices = PrinterJob.lookupPrintServices();

    System.out.println(pservices.length);
    if (pservices.length > 0) {
        for (PrintService ps : pservices) {
            System.out.println("Impressora Encontrada: " + ps.getName());

            if (ps.getName().contains(nomeImpressora)) {
                System.out.println("Impressora Selecionada: " + nomeImpressora);
                impressora = ps;
                break;
            }
        }
    }
    if (impressora != null) {
        pjob = PrinterJob.getPrinterJob();
        pjob.setPrintService(impressora);

        PageFormat pf = PrinterJob.getPrinterJob().defaultPage();

        pjob.setJobName(jobName);
        Book book = new Book();
        book.append(pages, pf, pdfFile.getNumPages());
        pjob.setPageable(book);

      
        Paper paper = new Paper();
        paper.setSize(getWidth, getHeight);
        paper.setImageableArea(margin, (int) margin / 4, getWidth - margin * 2, getHeight - margin * 2);
        //paper.setImageableArea(margin,margin, paper.getWidth()-margin*2,paper.getHeight()-margin*2);
        pf.setOrientation(orientacao);
        pf.setPaper(paper);
    }
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
public void openFile(File file) throws IOException {
    RandomAccessFile raf = new RandomAccessFile(file, "r");
    FileChannel channel = raf.getChannel();
    ByteBuffer bb = ByteBuffer.NEW(channel.map(
            FileChannel.MapMode.READ_ONLY, 0, channel.size()));
    mPdfFile = new PDFFile(bb);

}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
/**
 * Create a new Printable pdf
 * @param pdf The PDFFile to print
 * @param associatedFile A randomAccessFile to close when this class is finalized (or null)
 * @param a page format (or null for default)
 */
public PrintablePDF(PDFFile pdf, RandomAccessFile associatedFile, PageFormat pageFormat) {
	this.pdf = pdf;
	this.associatedFile = associatedFile;

	// create a new print job
	this.printJob = PrinterJob.getPrinterJob();
	// use the default page if we have a null format
	this.pageFormat = (pageFormat == null) ? printJob.defaultPage() : pageFormat;
	
	printJob.setPageable(this);
	printJob.setJobName("Tellervo Report");
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
/**
 * Create a new printable pdf from the given file
 * @param pdfFile
 * @return a PrintablePDF object
 * @throws IOException
 */
public static PrintablePDF fromFile(File pdfFile) throws IOException {
	// open the file as a random access file
	RandomAccessFile file = new RandomAccessFile(pdfFile, "r");
	// get the file as a read-only byte array
	ByteBuffer pdfBytes = file.getChannel().map(FileChannel.MapMode.READ_ONLY, 
			0, file.getChannel().size());
	
	return new PrintablePDF(new PDFFile(pdfBytes), file);
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
public static int numPagesInPdf(File pdfFile) {
	try {
		RandomAccessFile raf = new RandomAccessFile(pdfFile, "r");
		FileChannel channel = raf.getChannel();
		ByteBuffer buf = channel.map(FileChannel.MapMode.READ_ONLY, 0, channel.size());
		PDFFile pdf = new PDFFile(buf);
		int numPages = pdf.getNumPages();
		raf.close();
		return numPages;
	}
	catch (IOException e) {
		throw new RuntimeException(e);
	}
}
 

import com.sun.pdfview.PDFFile; //导入依赖的package包/类
private static BufferedImage readPage(PDFFile pdf, int pageNumber) {
	double scale = 2.5; // because otherwise the image comes out really tiny
	PDFPage page = pdf.getPage(pageNumber);
	Rectangle rect = new Rectangle(0, 0, (int) page.getBBox().getWidth(), (int) page.getBBox().getHeight());
	BufferedImage bufferedImage = new BufferedImage((int)(rect.width * scale), (int)(rect.height * scale), BufferedImage.TYPE_INT_RGB);
	Image image = page.getImage((int)(rect.width * scale), (int)(rect.height * scale), rect, null, true, true);
	Graphics2D bufImageGraphics = bufferedImage.createGraphics();
	bufImageGraphics.drawImage(image, 0, 0, null);
	return bufferedImage;
}