Java PdfContentByte.createTemplate方法代码示例

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
private void exportVectorGraphics(String formatName, File outputFile) throws ImageExportException {
	Component component = printableComponent.getExportComponent();
	int width = component.getWidth();
	int height = component.getHeight();
	try (FileOutputStream fs = new FileOutputStream(outputFile)) {
		switch (formatName) {
			case PDF:
				// create pdf document with slightly increased width and height
				// (otherwise the image gets cut off)
				Document document = new Document(new Rectangle(width + 5, height + 5));
				PdfWriter writer = PdfWriter.getInstance(document, fs);
				document.open();
				PdfContentByte cb = writer.getDirectContent();
				PdfTemplate tp = cb.createTemplate(width, height);
				Graphics2D g2 = tp.createGraphics(width, height, new DefaultFontMapper());
				component.print(g2);
				g2.dispose();
				cb.addTemplate(tp, 0, 0);
				document.close();
				break;
			case SVG:
				exportFreeHep(component, fs, new SVGGraphics2D(fs, new Dimension(width, height)));
				break;
			case EPS:
				exportFreeHep(component, fs, new PSGraphics2D(fs, new Dimension(width, height)));
				break;
			default:
				// cannot happen
				break;
		}
	} catch (Exception e) {
		throw new ImageExportException(I18N.getMessage(I18N.getUserErrorMessagesBundle(),
				"error.image_export.export_failed"), e);
	}
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Gets an instance of a Image from a java.awt.Image.
 * The image is added as a JPEG with a user defined quality.
 *
 * @param cb
 *            the <CODE>PdfContentByte</CODE> object to which the image will be added
 * @param awtImage
 *            the <CODE>java.awt.Image</CODE> to convert
 * @param quality
 *            a float value between 0 and 1
 * @return an object of type <CODE>PdfTemplate</CODE>
 * @throws BadElementException
 *             on error
 * @throws IOException
 */
public static Image getInstance(PdfContentByte cb, java.awt.Image awtImage, float quality) throws BadElementException, IOException {
    java.awt.image.PixelGrabber pg = new java.awt.image.PixelGrabber(awtImage,
            0, 0, -1, -1, true);
    try {
        pg.grabPixels();
    } catch (InterruptedException e) {
        throw new IOException(
                "java.awt.Image Interrupted waiting for pixels!");
    }
    if ((pg.getStatus() & java.awt.image.ImageObserver.ABORT) != 0) {
        throw new IOException("java.awt.Image fetch aborted or errored");
    }
    int w = pg.getWidth();
    int h = pg.getHeight();
    PdfTemplate tp = cb.createTemplate(w, h);
    Graphics2D g2d = tp.createGraphics(w, h, true, quality);
    g2d.drawImage(awtImage, 0, 0, null);
    g2d.dispose();
    return getInstance(tp);
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
  * Converts a JFreeChart to PDF syntax.
  * @param filename	the name of the PDF file
  * @param chart		the JFreeChart
  * @param width		the width of the resulting PDF
  * @param height	the height of the resulting PDF
  */
 public static void convertToPdf(JFreeChart chart, int width, int height, String filename) {
 	// step 1
 	Document document = new Document(new Rectangle(width, height));
 	try {
 		// step 2
 		PdfWriter writer;
writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream(filename));
// step 3
 		document.open();
 		// step 4
 		PdfContentByte cb = writer.getDirectContent();
 		PdfTemplate tp = cb.createTemplate(width, height);
 		Graphics2D g2d = tp.createGraphics(width, height, new DefaultFontMapper());
 		Rectangle2D r2d = new Rectangle2D.Double(0, 0, width, height);
 		chart.draw(g2d, r2d);
 		g2d.dispose();
 		tp.sanityCheck();
 		cb.addTemplate(tp, 0, 0);
 		cb.sanityCheck();
 	}
 	catch(DocumentException de) {
 		de.printStackTrace();
 	}
 	catch (FileNotFoundException e) {
 		e.printStackTrace();
 	}
 	// step 5
 	document.close();
 }
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Demonstrates the use of layers.
 * 
 * @param args
 *            no arguments needed
 */
@Test
public void main() throws Exception {
	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);
	// step 2: creation of the writer
	PdfWriter writer = PdfWriter.getInstance(document,
			PdfTestBase.getOutputStream("optionalcontent.pdf"));
	writer.setPdfVersion(PdfWriter.VERSION_1_5);
	writer.setViewerPreferences(PdfWriter.PageModeUseOC);
	// step 3: opening the document
	document.open();
	// step 4: content
	PdfContentByte cb = writer.getDirectContent();
	Phrase explanation = new Phrase(
			"Automatic layers, form fields, images, templates and actions",
			new Font(Font.HELVETICA, 18, Font.BOLD, Color.red));
	ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, explanation, 50,
			650, 0);
	PdfLayer l1 = new PdfLayer("Layer 1", writer);
	PdfLayer l2 = new PdfLayer("Layer 2", writer);
	PdfLayer l3 = new PdfLayer("Layer 3", writer);
	PdfLayer l4 = new PdfLayer("Form and XObject Layer", writer);
	PdfLayerMembership m1 = new PdfLayerMembership(writer);
	m1.addMember(l2);
	m1.addMember(l3);
	Phrase p1 = new Phrase("Text in layer 1");
	Phrase p2 = new Phrase("Text in layer 2 or layer 3");
	Phrase p3 = new Phrase("Text in layer 3");
	cb.beginLayer(l1);
	ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p1, 50, 600, 0f);
	cb.endLayer();
	cb.beginLayer(m1);
	ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p2, 50, 550, 0);
	cb.endLayer();
	cb.beginLayer(l3);
	ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, p3, 50, 500, 0);
	cb.endLayer();
	TextField ff = new TextField(writer, new Rectangle(200, 600, 300, 620),
			"field1");
	ff.setBorderColor(Color.blue);
	ff.setBorderStyle(PdfBorderDictionary.STYLE_SOLID);
	ff.setBorderWidth(TextField.BORDER_WIDTH_THIN);
	ff.setText("I'm a form field");
	PdfFormField form = ff.getTextField();
	form.setLayer(l4);
	writer.addAnnotation(form);
	Image img = Image.getInstance(PdfTestBase.RESOURCES_DIR
			+ "pngnow.png");
	img.setLayer(l4);
	img.setAbsolutePosition(200, 550);
	cb.addImage(img);
	PdfTemplate tp = cb.createTemplate(100, 20);
	Phrase pt = new Phrase("I'm a template", new Font(Font.HELVETICA, 12,
			Font.NORMAL, Color.magenta));
	ColumnText.showTextAligned(tp, Element.ALIGN_LEFT, pt, 0, 0, 0);
	tp.setLayer(l4);
	tp.setBoundingBox(new Rectangle(0, -10, 100, 20));
	cb.addTemplate(tp, 200, 500);
	ArrayList<Object> state = new ArrayList<Object>();
	state.add("toggle");
	state.add(l1);
	state.add(l2);
	state.add(l3);
	state.add(l4);
	PdfAction action = PdfAction.setOCGstate(state, true);
	Chunk ck = new Chunk("Click here to toggle the layers", new Font(
			Font.HELVETICA, 18, Font.NORMAL, Color.yellow)).setBackground(
			Color.blue).setAction(action);
	ColumnText.showTextAligned(cb, Element.ALIGN_CENTER, new Phrase(ck),
			250, 400, 0);
	cb.sanityCheck();

	// step 5: closing the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Painting Patterns.
 * 
 * @param args
 *            no arguments needed
 */
@Test
public void main() throws Exception {


	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);

	// step 2:
	// we create a writer that listens to the document
	// and directs a PDF-stream to a file
	PdfWriter writer = PdfWriter.getInstance(document,
			PdfTestBase.getOutputStream("pattern.pdf"));

	// step 3: we open the document
	document.open();

	// step 4: we add some content
	PdfContentByte cb = writer.getDirectContent();
	PdfTemplate tp = cb.createTemplate(400, 300);
	PdfPatternPainter pat = cb.createPattern(15, 15, null);
	pat.rectangle(5, 5, 5, 5);
	pat.fill();
	pat.sanityCheck();

	PdfSpotColor spc_cmyk = new PdfSpotColor("PANTONE 280 CV",
			new CMYKColor(0.9f, .2f, .3f, .1f));
	SpotColor spot = new SpotColor(spc_cmyk, 0.25f);
	tp.setPatternFill(pat, spot, .9f);
	tp.rectangle(0, 0, 400, 300);
	tp.fill();
	tp.sanityCheck();

	cb.addTemplate(tp, 50, 50);
	PdfPatternPainter pat2 = cb.createPattern(10, 10, null);
	pat2.setLineWidth(2);
	pat2.moveTo(-5, 0);
	pat2.lineTo(10, 15);
	pat2.stroke();
	pat2.moveTo(0, -5);
	pat2.lineTo(15, 10);
	pat2.stroke();
	cb.setLineWidth(1);
	cb.setColorStroke(Color.black);
	cb.setPatternFill(pat2, Color.red);
	cb.rectangle(100, 400, 30, 210);
	cb.fillStroke();
	cb.setPatternFill(pat2, Color.green);
	cb.rectangle(150, 400, 30, 100);
	cb.fillStroke();
	cb.setPatternFill(pat2, Color.blue);
	cb.rectangle(200, 400, 30, 130);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.5f));
	cb.rectangle(250, 400, 30, 80);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.7f));
	cb.rectangle(300, 400, 30, 170);
	cb.fillStroke();
	cb.setPatternFill(pat2, new GrayColor(0.9f));
	cb.rectangle(350, 400, 30, 40);
	cb.fillStroke();

	cb.sanityCheck();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public static void writeToPortableDocumentFormat(Drawing drawing, OutputStream outputStream, float drawingWidth, float drawingHeight, float pageWidth, float pageHeight) throws DocumentException
{
	com.lowagie.text.Document document = new com.lowagie.text.Document();
	
	document.setPageSize(new com.lowagie.text.Rectangle(pageWidth, pageHeight));
	
	PdfWriter writer = PdfWriter.getInstance(document, outputStream);
	
	document.open();
	
	PdfContentByte cb = writer.getDirectContent();
	
	PdfTemplate tp = cb.createTemplate(drawingWidth, drawingHeight);
	
	DefaultFontMapper mapper = PdfFriend.getFontMapper();
	final DefaultDrawingContext drawingContext = (DefaultDrawingContext) DrawingContextFactory.getDrawingContext();
	Graphics2D g2 = null;
	
	if (BalloonEngineState.getInstance().isPreserveAccuracy())
		g2 = tp.createGraphicsShapes(drawingWidth, drawingHeight);
	else
		g2 = tp.createGraphics(drawingWidth, drawingHeight, mapper);
	
	drawingContext.setGraphics(g2);
	drawingContext.setTargetingPdf(true);
	drawingContext.setSelected(new Selection());
	drawingContext.setExportProfile(new SimpleExportProfile());
	
	drawing.drawOnto(drawingContext);
	
	Dimension dimension = new Dimension((int)drawingWidth, (int)drawingHeight);

	g2.dispose();
	cb.addTemplate(tp, 0, 0);
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
public String createPdfDocument(String fileName, Image image) {
  Document document = new Document();
  File file = null;
  try {
    int w = image.getWidth(null);
    int h = image.getHeight(null);
    file = new File(fileName);
    PdfWriter writer = PdfWriter.getInstance(document,
        new FileOutputStream(file));
    document.open();
    PdfContentByte cb = writer.getDirectContent();
    PdfTemplate tp = cb.createTemplate(w, h);
    Graphics2D g2 = tp.createGraphics(w, h);
    g2.setStroke(new BasicStroke(0.1f));
    tp.setWidth(w);
    tp.setHeight(h);
    g2.drawImage(image, 0, 0, w, h, 0, 0, w, h, null);
    g2.dispose();
    cb.addTemplate(tp, 72, 720 - h);
  } catch (DocumentException de) {
    return de.getMessage();
  } catch (IOException ioe) {
    return ioe.getMessage();
  }
  document.close();
  return null;
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * @param file The file to save to.
 * @return <code>true</code> on success.
 */
public boolean saveAsPDF(File file) {
    HashSet<Row> changed = expandAllContainers();
    try {
        PrintManager settings = mCharacter.getPageSettings();
        PageFormat format = settings != null ? settings.createPageFormat() : createDefaultPageFormat();
        Paper paper = format.getPaper();
        float width = (float) paper.getWidth();
        float height = (float) paper.getHeight();

        adjustToPageSetupChanges(true);
        setPrinting(true);

        com.lowagie.text.Document pdfDoc = new com.lowagie.text.Document(new com.lowagie.text.Rectangle(width, height));
        try (FileOutputStream out = new FileOutputStream(file)) {
            PdfWriter writer = PdfWriter.getInstance(pdfDoc, out);
            int pageNum = 0;
            PdfContentByte cb;

            pdfDoc.open();
            cb = writer.getDirectContent();
            while (true) {
                PdfTemplate template = cb.createTemplate(width, height);
                Graphics2D g2d = template.createGraphics(width, height, new DefaultFontMapper());

                if (print(g2d, format, pageNum) == NO_SUCH_PAGE) {
                    g2d.dispose();
                    break;
                }
                if (pageNum != 0) {
                    pdfDoc.newPage();
                }
                g2d.setClip(0, 0, (int) width, (int) height);
                print(g2d, format, pageNum++);
                g2d.dispose();
                cb.addTemplate(template, 0, 0);
            }
            pdfDoc.close();
        }
        return true;
    } catch (Exception exception) {
        return false;
    } finally {
        setPrinting(false);
        closeContainers(changed);
    }
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
   
    */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2:
	// we create a writer that listens to the document
	// and directs a PDF-stream to a file
	PdfWriter writer = PdfWriter.getInstance(document,	PdfTestBase.getOutputStream("templates.pdf"));

	// step 3: we open the document
	document.open();

	// step 4: we grab the ContentByte and do some stuff with it
	PdfContentByte cb = writer.getDirectContent();

	// we create a PdfTemplate
	PdfTemplate template = cb.createTemplate(500, 200);

	// we add some graphics
	template.moveTo(0, 200);
	template.lineTo(500, 0);
	template.stroke();
	template.setRGBColorStrokeF(255f, 0f, 0f);
	template.circle(250f, 100f, 80f);
	template.stroke();

	// we add some text
	template.beginText();
	BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252,
			BaseFont.NOT_EMBEDDED);
	template.setFontAndSize(bf, 12);
	template.setTextMatrix(100, 100);
	template.showText("Text at the position 100,100 (relative to the template!)");
	template.endText();
	template.sanityCheck();

	// we add the template on different positions
	cb.addTemplate(template, 0, 0);
	cb.addTemplate(template, 0, 1, -1, 0, 500, 200);
	cb.addTemplate(template, .5f, 0, 0, .5f, 100, 400);

	// we go to a new page
	document.newPage();
	cb.addTemplate(template, 0, 400);
	cb.addTemplate(template, 2, 0, 0, 2, -200, 400);
	cb.sanityCheck();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
    * Creates a PDF document with shapes, lines and text at specific X and Y coordinates.
    */
@Test
public void main() throws Exception {
       
       // step 1: creation of a document-object
       Document document = new Document();
       
       try {      
           // step 2: creation of the writer
           PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream( "XandY.pdf"));
           
           // step 3: we open the document
           document.open();
           
           // step 4:
           PdfContentByte cb = writer.getDirectContent();
           
           // we create a PdfTemplate
           PdfTemplate template = cb.createTemplate(25, 25);
           
           // we add some crosses to visualize the coordinates
           template.moveTo(13, 0);
           template.lineTo(13, 25);
           template.moveTo(0, 13);
           template.lineTo(50, 13);
           template.stroke();
           template.sanityCheck();
           
           // we add the template on different positions
           cb.addTemplate(template, 216 - 13, 720 - 13);
           cb.addTemplate(template, 360 - 13, 360 - 13);
           cb.addTemplate(template, 360 - 13, 504 - 13);
           cb.addTemplate(template, 72 - 13, 144 - 13);
           cb.addTemplate(template, 144 - 13, 288 - 13);

           cb.moveTo(216, 720);
           cb.lineTo(360, 360);
           cb.lineTo(360, 504);
           cb.lineTo(72, 144);
           cb.lineTo(144, 288);
           cb.stroke();
           
           BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
           cb.beginText();
           cb.setFontAndSize(bf, 12);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(3\", 10\")", 216 + 25, 720 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(5\", 5\")", 360 + 25, 360 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(5\", 7\")", 360 + 25, 504 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(1\", 2\")", 72 + 25, 144 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(2\", 4\")", 144 + 25, 288 + 5, 0);
           cb.endText(); 
           
           cb.sanityCheck();
       }
       catch(DocumentException de) {
           System.err.println(de.getMessage());
       }
       catch(IOException ioe) {
           System.err.println(ioe.getMessage());
       }
       
       // step 5: we close the document
       document.close();
   }
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Adding a template using different transformation matrices.
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4);

	// step 2: creation of the writer
	PdfWriter writer = PdfWriter.getInstance(document,	PdfTestBase.getOutputStream("transformations.pdf"));

	// step 3: we open the document
	document.open();

	// step 4:
	PdfContentByte cb = writer.getDirectContent();

	// we create a PdfTemplate
	PdfTemplate template = cb.createTemplate(120, 120);

	// we add some graphics
	template.moveTo(30, 10);
	template.lineTo(90, 10);
	template.lineTo(90, 80);
	template.lineTo(110, 80);
	template.lineTo(60, 110);
	template.lineTo(10, 80);
	template.lineTo(30, 80);
	template.closePath();
	template.stroke();
	template.sanityCheck();

	// we add the template on different positions
	cb.addTemplate(template, 0, 0);
	cb.addTemplate(template, 0, 1, -1, 0, 200, 600);
	cb.addTemplate(template, .5f, 0, 0, .5f, 100, 400);
	cb.sanityCheck();

	// we go to a new page
	document.newPage();
	cb.addTemplate(template, 0, 500);
	cb.addTemplate(template, 2, 0, -1, 2, 200, 300);
	cb.sanityCheck();
	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
    * Changes the default coordinate system so that the origin is in the upper left corner
    * instead of the lower left corner.
    */
@Test
public void main() throws Exception {
       
       // step 1: creation of a document-object
       Document document = new Document(PageSize.A4);
       
       try {
           // step 2: creation of the writer
           PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream( "upsidedown.pdf"));
           
           // step 3: we open the document
           document.open();
           
           // step 4:
           PdfContentByte cb = writer.getDirectContent();
           cb.concatCTM(1f, 0f, 0f, -1f, 0f, PageSize.A4.getHeight());
           
           // we create a PdfTemplate
           PdfTemplate template = cb.createTemplate(25, 25);
           
           // we add some crosses to visualize the coordinates
           template.moveTo(13, 0);
           template.lineTo(13, 25);
           template.moveTo(0, 13);
           template.lineTo(50, 13);
           template.stroke();
           template.sanityCheck();
           
           // we add the template on different positions
           cb.addTemplate(template, 216 - 13, 720 - 13);
           cb.addTemplate(template, 360 - 13, 360 - 13);
           cb.addTemplate(template, 360 - 13, 504 - 13);
           cb.addTemplate(template, 72 - 13, 144 - 13);
           cb.addTemplate(template, 144 - 13, 288 - 13);

           cb.moveTo(216, 720);
           cb.lineTo(360, 360);
           cb.lineTo(360, 504);
           cb.lineTo(72, 144);
           cb.lineTo(144, 288);
           cb.stroke();
           
           BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);
           cb.beginText();
           cb.setFontAndSize(bf, 12);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(3\", 10\")", 216 + 25, 720 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(5\", 5\")", 360 + 25, 360 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(5\", 7\")", 360 + 25, 504 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(1\", 2\")", 72 + 25, 144 + 5, 0);
           cb.showTextAligned(PdfContentByte.ALIGN_CENTER, "(2\", 4\")", 144 + 25, 288 + 5, 0);
           cb.endText();
           
           cb.sanityCheck();
       }
       catch(DocumentException de) {
           System.err.println(de.getMessage());
       }
       catch(IOException ioe) {
           System.err.println(ioe.getMessage());
       }
       
       // step 5: we close the document
       document.close();
   }
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Changes the transformation matrix with AffineTransform.
 */
@Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document(PageSize.A4);

	// step 2: creation of the writer
	PdfWriter writer = PdfWriter.getInstance(document,
			PdfTestBase.getOutputStream("affinetransformation.pdf"));

	// step 3: we open the document
	document.open();

	// step 4:
	PdfContentByte cb = writer.getDirectContent();
	cb.transform(AffineTransform.getScaleInstance(1.2, 0.75));

	// we create a PdfTemplate
	PdfTemplate template = cb.createTemplate(25, 25);

	// we add some crosses to visualize the coordinates
	template.moveTo(13, 0);
	template.lineTo(13, 25);
	template.moveTo(0, 13);
	template.lineTo(50, 13);
	template.stroke();
	template.sanityCheck();

	// we add the template on different positions
	cb.addTemplate(template, 216 - 13, 720 - 13);
	cb.addTemplate(template, 360 - 13, 360 - 13);
	cb.addTemplate(template, 360 - 13, 504 - 13);
	cb.addTemplate(template, 72 - 13, 144 - 13);
	cb.addTemplate(template, 144 - 13, 288 - 13);

	cb.moveTo(216, 720);
	cb.lineTo(360, 360);
	cb.lineTo(360, 504);
	cb.lineTo(72, 144);
	cb.lineTo(144, 288);
	cb.stroke();

	BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252,
			BaseFont.NOT_EMBEDDED);
	cb.beginText();
	cb.setFontAndSize(bf, 12);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
			"(3\" * 1.2, 10\" * .75)", 216 + 25, 720 + 5, 0);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
			"(5\" * 1.2, 5\" * .75)", 360 + 25, 360 + 5, 0);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
			"(5\" * 1.2, 7\" * .75)", 360 + 25, 504 + 5, 0);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
			"(1\" * 1.2, 2\" * .75)", 72 + 25, 144 + 5, 0);
	cb.showTextAligned(PdfContentByte.ALIGN_CENTER,
			"(2\" * 1.2, 4\" * .75)", 144 + 25, 288 + 5, 0);
	cb.endText();

	cb.sanityCheck();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Draws the iText logo.
 */
 @Test
public void main() throws Exception {

	// step 1: creation of a document-object
	Document document = new Document();

	// step 2: creation of the writer
	PdfWriter writer = PdfWriter.getInstance(document,	PdfTestBase.getOutputStream("logo.pdf"));

	// step 3: we open the document
	document.open();

	// step 4:
	BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.CP1252,
			BaseFont.NOT_EMBEDDED);
	PdfContentByte cb = writer.getDirectContent();
	PdfTemplate template = cb.createTemplate(500, 200);
	template.setLineWidth(2f);
	template.rectangle(2.5f, 2.5f, 495f, 195f);
	template.stroke();
	template.setLineWidth(12f);
	template.arc(40f - (float) Math.sqrt(12800),
			120f + (float) Math.sqrt(12800),
			200f - (float) Math.sqrt(12800),
			-40f + (float) Math.sqrt(12800), 281.25f, 33.75f);
	template.arc(40f, 120f, 200f, -40f, 90f, 45f);
	template.stroke();
	template.setLineCap(1);
	template.setLineWidth(12f);
	template.arc(80f, 40f, 160f, 120f, 90f, 180f);
	template.arc(115f, 75f, 125f, 85f, 0f, 360f);
	template.stroke();
	template.beginText();
	template.setFontAndSize(bf, 180);
	template.setRGBColorFill(0xFF, 0x00, 0x00);
	template.showTextAligned(PdfContentByte.ALIGN_LEFT, "T", 125f, 35f, 0f);
	template.resetRGBColorFill();
	template.showTextAligned(PdfContentByte.ALIGN_LEFT, "ext", 220f, 35f,
			0f);
	template.endText();
	template.sanityCheck();

	cb.addTemplate(template, 0, 1, -1, 0, 500, 200);
	cb.addTemplate(template, .5f, 0, 0, .5f, 100, 400);
	cb.addTemplate(template, 0.25f, 0, 0, 0.25f, 100, 100);
	cb.sanityCheck();

	// step 5: we close the document
	document.close();
}
 

import com.lowagie.text.pdf.PdfContentByte; //导入方法依赖的package包/类
/**
 * Demonstrates the Transparency functionality.
 */
@Test
public void main() {
    // step 1: creation of a document-object
    Document document = new Document(PageSize.A4, 50, 50, 50, 50);
    try {
        // step 2: creation of a writer 
        PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("groups.pdf"));
        // step 3: we open the document
        document.open();
        // step 4: content
        PdfContentByte cb = writer.getDirectContent();
        float gap = (document.getPageSize().getWidth() - 400) / 3;
        
        pictureBackdrop(gap, 500, cb);
        pictureBackdrop(200 + 2 * gap, 500, cb);
        pictureBackdrop(gap, 500 - 200 - gap, cb);
        pictureBackdrop(200 + 2 * gap, 500 - 200 - gap, cb);

        PdfTemplate tp;
        PdfTransparencyGroup group;
        
        tp = cb.createTemplate(200, 200);
        pictureCircles(0, 0, tp);
        group = new PdfTransparencyGroup();
        group.setIsolated(true);
        group.setKnockout(true);
        tp.setGroup(group);
        tp.sanityCheck();
        cb.addTemplate(tp, gap, 500);

        
        tp = cb.createTemplate(200, 200);
        pictureCircles(0, 0, tp);
        group = new PdfTransparencyGroup();
        group.setIsolated(true);
        group.setKnockout(false);
        tp.setGroup(group);
        tp.sanityCheck();
        cb.addTemplate(tp, 200 + 2 * gap, 500);

        
        tp = cb.createTemplate(200, 200);
        pictureCircles(0, 0, tp);
        group = new PdfTransparencyGroup();
        group.setIsolated(false);
        group.setKnockout(true);
        tp.setGroup(group);
        tp.sanityCheck();
        cb.addTemplate(tp, gap, 500 - 200 - gap);

        
        tp = cb.createTemplate(200, 200);
        pictureCircles(0, 0, tp);
        group = new PdfTransparencyGroup();
        group.setIsolated(false);
        group.setKnockout(false);
        tp.setGroup(group);
        tp.sanityCheck();
        cb.addTemplate(tp, 200 + 2 * gap, 500 - 200 - gap);

        cb.sanityCheck();
    }
    catch (Exception de) {
        de.printStackTrace();
    }
    // step 5: we close the document
    document.close();
}