Java PdfContentByte.sanityCheck方法代码示例

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

	Document document = new Document(PageSize.A4, 50, 50, 50, 50);
	PdfWriter writer = PdfWriter.getInstance(document,	PdfTestBase.getOutputStream( "shading.pdf"));
	document.open();

	PdfFunction function1 = PdfFunction.type2(writer, new float[] { 0, 1 },
			null, new float[] { .929f, .357f, 1, .298f }, new float[] {
					.631f, .278f, 1, .027f }, 1.048f);
	PdfFunction function2 = PdfFunction.type2(writer, new float[] { 0, 1 },
			null, new float[] { .929f, .357f, 1, .298f }, new float[] {
					.941f, .4f, 1, .102f }, 1.374f);
	PdfFunction function3 = PdfFunction.type3(writer, new float[] { 0, 1 },
			null, new PdfFunction[] { function1, function2 },
			new float[] { .708f }, new float[] { 1, 0, 0, 1 });
	PdfShading shading = PdfShading.type3(writer,
			new CMYKColor(0, 0, 0, 0),
			new float[] { 0, 0, .096f, 0, 0, 1 }, null, function3,
			new boolean[] { true, true });
	PdfContentByte cb = writer.getDirectContent();
	cb.moveTo(316.789f, 140.311f);
	cb.curveTo(303.222f, 146.388f, 282.966f, 136.518f, 279.122f, 121.983f);
	cb.lineTo(277.322f, 120.182f);
	cb.curveTo(285.125f, 122.688f, 291.441f, 121.716f, 298.156f, 119.386f);
	cb.lineTo(336.448f, 119.386f);
	cb.curveTo(331.072f, 128.643f, 323.346f, 137.376f, 316.789f, 140.311f);
	cb.clip();
	cb.newPath();
	cb.saveState();
	cb.concatCTM(27.7843f, 0, 0, -27.7843f, 310.2461f, 121.1521f);
	cb.paintShading(shading);
	cb.restoreState();

	cb.sanityCheck();

	document.close();
}
 

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
/**
    * Draws some shapes.
    */
@Test
public void main() throws Exception {
       
       
       // step 1: creation of a document-object
       Document document = new Document();
       
       try {
           
           // 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( "shapes.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();
           
           // an example of a rectangle with a diagonal in very thick lines
           cb.setLineWidth(10f);
           // draw a rectangle
           cb.rectangle(100, 700, 100, 100);
           // add the diagonal
           cb.moveTo(100, 700);
           cb.lineTo(200, 800);
           // stroke the lines
           cb.stroke();
           
           // an example of some circles
           cb.setLineDash(3, 3, 0);
           cb.setRGBColorStrokeF(0f, 255f, 0f);
           cb.circle(150f, 500f, 100f);
           cb.stroke();
           
           cb.setLineWidth(5f);
           cb.resetRGBColorStroke();
           cb.circle(150f, 500f, 50f);
           cb.stroke();
           
           // example with colorfill
           cb.setRGBColorFillF(0f, 255f, 0f);
           cb.moveTo(100f, 200f);
           cb.lineTo(200f, 250f);
           cb.lineTo(400f, 150f);
           // because we change the fill color BEFORE we stroke the triangle
           // the color of the triangle will be red instead of green
           cb.setRGBColorFillF(255f, 0f, 0f);
           cb.closePathFillStroke();
           
           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
/**
 * 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
/**
 * Shading example.
 */
@Test
public void main() throws Exception {
	Document document = new Document(PageSize.A4, 50, 50, 50, 50);
	PdfWriter writer = PdfWriter.getInstance(document,
			PdfTestBase.getOutputStream("shading_pattern.pdf"));
	document.open();

	PdfShading shading = PdfShading.simpleAxial(writer, 100, 100, 400, 100,
			Color.red, Color.cyan);
	PdfShadingPattern shadingPattern = new PdfShadingPattern(shading);
	PdfContentByte cb = writer.getDirectContent();
	BaseFont bf = BaseFont.createFont(BaseFont.TIMES_BOLD,
			BaseFont.WINANSI, false);
	cb.setShadingFill(shadingPattern);
	cb.beginText();
	cb.setTextMatrix(100, 100);
	cb.setFontAndSize(bf, 40);
	cb.showText("Look at this text!");
	cb.endText();
	PdfShading shadingR = PdfShading.simpleRadial(writer, 200, 500, 50,
			300, 500, 100, new Color(255, 247, 148), new Color(247, 138,
					107), false, false);
	cb.paintShading(shadingR);
	cb.sanityCheck();
	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
/**
 * Demonstrates the Transparency functionality.
 */
@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 a writer
	PdfWriter writer = PdfWriter.getInstance(document,PdfTestBase.getOutputStream("softmask.pdf"));
	// step 3: we open the document
	document.open();
	// step 4: content
	PdfContentByte cb = writer.getDirectContent();
	String text = "text ";
	text += text;
	text += text;
	text += text;
	text += text;
	text += text;
	text += text;
	text += text;
	text += text;
	document.add(new Paragraph(text));
	Image img = Image.getInstance(PdfTestBase.RESOURCES_DIR	+ "otsoe.jpg");
	img.setAbsolutePosition(100, 550);
	byte gradient[] = new byte[256];
	for (int k = 0; k < 256; ++k) {
		gradient[k] = (byte) k;
	}
	Image smask = Image.getInstance(256, 1, 1, 8, gradient);
	smask.makeMask();
	img.setImageMask(smask);
	cb.addImage(img);
	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
/**
   
    */
@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
/**
 * Changing the Graphics State with PdfGState.
 * 
 */
@Test
public void main() throws Exception {

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

	try {

		// 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( "gstate.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();

           PdfGState gs = new PdfGState();
           gs.setFillOpacity(0.5f);
           cb.setGState(gs);
		cb.setColorFill(Color.red);
		cb.circle(260.0f, 500.0f, 250.0f);
		cb.fill();
		cb.circle(260.0f, 500.0f, 200.0f);
		cb.fill();
		cb.circle(260.0f, 500.0f, 150.0f);
		cb.fill();
		gs.setFillOpacity(0.2f);
		cb.setGState(gs);
		cb.setColorFill(Color.blue);
		cb.circle(260.0f, 500.0f, 100.0f);
		cb.fill();
		cb.circle(260.0f, 500.0f, 50.0f);
		cb.fill();
		
		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
/**
 * 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();
}
 

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 different things into different layers.
 */
@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("layers.pdf"));

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

	// step 4:

	// high level
	Paragraph p = new Paragraph();
	for (int i = 0; i < 100; i++)
		p.add(new Chunk("Blah blah blah blah blah. "));
	document.add(p);
	Image img = Image.getInstance(PdfTestBase.RESOURCES_DIR
			+ "hitchcock.png");
	img.setAbsolutePosition(100, 500);
	document.add(img);

	// low level
	PdfContentByte cb = writer.getDirectContent();
	PdfContentByte cbu = writer.getDirectContentUnder();
	cb.setRGBColorFill(0xFF, 0xFF, 0xFF);
	cb.circle(250.0f, 500.0f, 50.0f);
	cb.fill();
	cb.sanityCheck();

	cbu.setRGBColorFill(0xFF, 0x00, 0x00);
	cbu.circle(250.0f, 500.0f, 100.0f);
	cbu.fill();
	cbu.sanityCheck();

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