Java Code Examples for com.lowagie.text.Image#setAbsolutePosition()

/**
 * 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();
}
 

/**
 * Adds some annotated images to a PDF file.
 */
@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
	PdfWriter.getInstance(document, PdfTestBase.getOutputStream("annotated_images.pdf"));
	// step 3: we open the document
	document.open();
	// step 4: we add some content
	Image jpeg = Image.getInstance(PdfTestBase.RESOURCES_DIR + "otsoe.jpg");
	jpeg.setAnnotation(new Annotation("picture", "This is my dog", 0, 0, 0, 0));
	jpeg.setAbsolutePosition(100f, 550f);
	document.add(jpeg);
	Image wmf = Image.getInstance(PdfTestBase.RESOURCES_DIR + "iText.wmf");
	wmf.setAnnotation(new Annotation(0, 0, 0, 0, "http://www.lowagie.com/iText"));
	wmf.setAbsolutePosition(100f, 200f);
	document.add(wmf);

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

/**
 * Adds an Image at an absolute position.
 */
@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.getInstance(document, PdfTestBase.getOutputStream("absolutepositions.pdf"));

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

	// step 4: we add content
	Image png = Image.getInstance(PdfTestBase.RESOURCES_DIR + "hitchcock.png");
	png.setAbsolutePosition(171, 250);
	document.add(png);
	png.setAbsolutePosition(342, 500);
	document.add(png);

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

/**
 * 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();
}
 

/**
 * Uses a java.awt.Image object to construct a com.lowagie.text.Image
 * object.
 */
@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("awt_image.pdf"));

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

	// step 4: we add content to the document
	for (int i = 0; i < 300; i++) {
		document.add(new Phrase("Who is this? "));
	}
	PdfContentByte cb = writer.getDirectContent();
	java.awt.Image awtImage = Toolkit.getDefaultToolkit().createImage(PdfTestBase.RESOURCES_DIR + "H.gif");
	Image image = Image.getInstance(awtImage, null);
	image.setAbsolutePosition(100, 500);
	cb.addImage(image);
	Image gif = Image.getInstance(awtImage, new Color(0x00, 0xFF, 0xFF), true);
	gif.setAbsolutePosition(300, 500);
	cb.addImage(gif);
	Image img1 = Image.getInstance(awtImage, null, true);
	img1.setAbsolutePosition(100, 200);
	cb.addImage(img1);
	Image img2 = Image.getInstance(awtImage, new Color(0xFF, 0xFF, 0x00), false);
	img2.setAbsolutePosition(300, 200);
	cb.addImage(img2);

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

/**
 * Combines 2 tiff-files into 1 PDF (similar to tiffmesh).
 * 
 * @param args
 *            [0] the file with the odd pages [1] the file with the even
 *            pages [2] the resulting file
 */
public void main(String... args) throws Exception {
	if (args.length < 3) {
		System.err.println("OddEven needs 3 Arguments.");
		System.out
				.println("Usage: com.lowagie.examples.objects.images.tiff.OddEven odd_file.tif even_file.tif combined_file.pdf");
		return;
	}
	RandomAccessFileOrArray odd = new RandomAccessFileOrArray(args[0]);
	RandomAccessFileOrArray even = new RandomAccessFileOrArray(args[1]);
	Image img = TiffImage.getTiffImage(odd, 1);
	Document document = new Document(new Rectangle(img.getScaledWidth(), img.getScaledHeight()));
	PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(args[2]));
	document.open();
	PdfContentByte cb = writer.getDirectContent();
	int count = Math.max(TiffImage.getNumberOfPages(odd), TiffImage.getNumberOfPages(even));
	for (int c = 0; c < count; ++c) {

		Image imgOdd = TiffImage.getTiffImage(odd, c + 1);
		Image imgEven = TiffImage.getTiffImage(even, count - c);
		document.setPageSize(new Rectangle(imgOdd.getScaledWidth(), imgOdd.getScaledHeight()));
		document.newPage();
		imgOdd.setAbsolutePosition(0, 0);
		cb.addImage(imgOdd);
		document.setPageSize(new Rectangle(imgEven.getScaledWidth(), imgEven.getScaledHeight()));
		document.newPage();
		imgEven.setAbsolutePosition(0, 0);
		cb.addImage(imgEven);

	}
	odd.close();
	even.close();
	document.close();

}
 

/**
 * Creates an Image object based on a list of properties.
 * 
 * @param attributes
 * @return an Image
 */
public static Image getImage(Properties attributes) throws BadElementException, MalformedURLException, IOException {
	String value;

	value = attributes.getProperty(ElementTags.URL);
	if (value == null) {
		throw new MalformedURLException("The URL of the image is missing.");
	}
	Image image = Image.getInstance(value);

	value = attributes.getProperty(ElementTags.ALIGN);
	int align = 0;
	if (value != null) {
		if (ElementTags.ALIGN_LEFT.equalsIgnoreCase(value)) {
			align |= Image.LEFT;
		} else if (ElementTags.ALIGN_RIGHT.equalsIgnoreCase(value)) {
			align |= Image.RIGHT;
		} else if (ElementTags.ALIGN_MIDDLE.equalsIgnoreCase(value)) {
			align |= Image.MIDDLE;
		}
	}
	if ("true".equalsIgnoreCase(attributes.getProperty(ElementTags.UNDERLYING))) {
		align |= Image.UNDERLYING;
	}
	if ("true".equalsIgnoreCase(attributes.getProperty(ElementTags.TEXTWRAP))) {
		align |= Image.TEXTWRAP;
	}
	image.setAlignment(align);

	value = attributes.getProperty(ElementTags.ALT);
	if (value != null) {
		image.setAlt(value);
	}

	String x = attributes.getProperty(ElementTags.ABSOLUTEX);
	String y = attributes.getProperty(ElementTags.ABSOLUTEY);
	if (x != null && y != null) {
		image.setAbsolutePosition(Float.parseFloat(x + "f"), Float.parseFloat(y + "f"));
	}
	value = attributes.getProperty(ElementTags.PLAINWIDTH);
	if (value != null) {
		image.scaleAbsoluteWidth(Float.parseFloat(value + "f"));
	}
	value = attributes.getProperty(ElementTags.PLAINHEIGHT);
	if (value != null) {
		image.scaleAbsoluteHeight(Float.parseFloat(value + "f"));
	}
	value = attributes.getProperty(ElementTags.ROTATION);
	if (value != null) {
		image.setRotation(Float.parseFloat(value + "f"));
	}
	return image;
}
 

/**
 * Creates an Image object based on a list of properties.
 * @param attributes
 * @return an Image
 */
public static Image getImage(Properties attributes)
		throws BadElementException, MalformedURLException, IOException {
	String value;

	value = attributes.getProperty(ElementTags.URL);
	if (value == null)
		throw new MalformedURLException("The URL of the image is missing.");
	Image image = Image.getInstance(value);

	value = attributes.getProperty(ElementTags.ALIGN);
	int align = 0;
	if (value != null) {
		if (ElementTags.ALIGN_LEFT.equalsIgnoreCase(value))
			align |= Image.LEFT;
		else if (ElementTags.ALIGN_RIGHT.equalsIgnoreCase(value))
			align |= Image.RIGHT;
		else if (ElementTags.ALIGN_MIDDLE.equalsIgnoreCase(value))
			align |= Image.MIDDLE;
	}
	if ("true".equalsIgnoreCase(attributes
			.getProperty(ElementTags.UNDERLYING)))
		align |= Image.UNDERLYING;
	if ("true".equalsIgnoreCase(attributes
			.getProperty(ElementTags.TEXTWRAP)))
		align |= Image.TEXTWRAP;
	image.setAlignment(align);

	value = attributes.getProperty(ElementTags.ALT);
	if (value != null) {
		image.setAlt(value);
	}

	String x = attributes.getProperty(ElementTags.ABSOLUTEX);
	String y = attributes.getProperty(ElementTags.ABSOLUTEY);
	if ((x != null) && (y != null)) {
		image.setAbsolutePosition(Float.parseFloat(x + "f"), Float
				.parseFloat(y + "f"));
	}
	value = attributes.getProperty(ElementTags.PLAINWIDTH);
	if (value != null) {
		image.scaleAbsoluteWidth(Float.parseFloat(value + "f"));
	}
	value = attributes.getProperty(ElementTags.PLAINHEIGHT);
	if (value != null) {
		image.scaleAbsoluteHeight(Float.parseFloat(value + "f"));
	}
	value = attributes.getProperty(ElementTags.ROTATION);
	if (value != null) {
		image.setRotation(Float.parseFloat(value + "f"));
	}
	return image;
}
 

/**
    * Reads the pages of an existing PDF file, adds pagenumbers and a watermark.

    */
@Test
   public  void main() throws Exception {
           // we create a reader for a certain document
           PdfReader reader = new PdfReader(PdfTestBase.RESOURCES_DIR +"ChapterSection.pdf");
           int n = reader.getNumberOfPages();
           // we create a stamper that will copy the document to a new file
           PdfStamper stamp = new PdfStamper(reader,PdfTestBase.getOutputStream("watermark_pagenumbers.pdf"));
           // adding some metadata
           HashMap<String, String> moreInfo = new HashMap<String, String>();
           moreInfo.put("Author", "Bruno Lowagie");
           stamp.setMoreInfo(moreInfo);
           // adding content to each page
           int i = 0;
           PdfContentByte under;
           PdfContentByte over;
           Image img = Image.getInstance(PdfTestBase.RESOURCES_DIR +"watermark.jpg");
           BaseFont bf = BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.EMBEDDED);
           img.setAbsolutePosition(200, 400);
           while (i < n) {
           	i++;
           	// watermark under the existing page
           	under = stamp.getUnderContent(i);
           	under.addImage(img);
           	// text over the existing page
           	over = stamp.getOverContent(i);
           	over.beginText();
           	over.setFontAndSize(bf, 18);
           	over.setTextMatrix(30, 30);
           	over.showText("page " + i);
           	over.setFontAndSize(bf, 32);
           	over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE", 230, 430, 45);
           	over.endText();
           }
           // adding an extra page
           stamp.insertPage(1, PageSize.A4);
           over = stamp.getOverContent(1);
       	over.beginText();
       	over.setFontAndSize(bf, 18);
           over.showTextAligned(Element.ALIGN_LEFT, "DUPLICATE OF AN EXISTING PDF DOCUMENT", 30, 600, 0);
           over.endText();
           // adding a page from another document
           PdfReader reader2 = new PdfReader(PdfTestBase.RESOURCES_DIR +"SimpleAnnotations1.pdf");
           under = stamp.getUnderContent(1);
           under.addTemplate(stamp.getImportedPage(reader2, 3), 1, 0, 0, 1, 0, 0);
           // closing PdfStamper will generate the new PDF file
           stamp.close();
   }
 

/**
 * 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();
}
 

/**
    * Applying masks to images.
 */
@Test
public void main() throws Exception {
       
       
       Document document = new Document(PageSize.A4, 50, 50, 50, 50);
       try {
           PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream( "maskedImages.pdf"));
           
           document.open();
           Paragraph p = new Paragraph("Some text behind a masked image.");
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           document.add(p);
           PdfContentByte cb = writer.getDirectContent();
           byte maskr[] = {(byte)0x3c, (byte)0x7e, (byte)0xe7, (byte)0xc3, (byte)0xc3, (byte)0xe7, (byte)0x7e, (byte)0x3c};
           Image mask = Image.getInstance(8, 8, 1, 1, maskr);
           mask.makeMask();
           mask.setInverted(true);
           Image image = Image.getInstance(PdfTestBase.RESOURCES_DIR +"otsoe.jpg");
           image.setImageMask(mask);
           image.setAbsolutePosition(60, 550);
           // explicit masking
           cb.addImage(image);
           // stencil masking
           cb.setRGBColorFill(255, 0, 0);
           cb.addImage(mask, mask.getScaledWidth() * 8, 0, 0, mask.getScaledHeight() * 8, 100, 450);
           cb.setRGBColorFill(0, 255, 0);
           cb.addImage(mask, mask.getScaledWidth() * 8, 0, 0, mask.getScaledHeight() * 8, 100, 400);
           cb.setRGBColorFill(0, 0, 255);
           cb.addImage(mask, mask.getScaledWidth() * 8, 0, 0, mask.getScaledHeight() * 8, 100, 350);
           document.close();
       }
       catch (Exception de) {
           de.printStackTrace();
       }
   }
 

/**
 * Raw data.
 */
@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.getInstance(document, PdfTestBase.getOutputStream("rawdata.pdf"));

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

	// step 4: we add content (example by Paulo Soares)

	// creation a jpeg passed as an array of bytes to the Image
	RandomAccessFile rf = new RandomAccessFile(PdfTestBase.RESOURCES_DIR + "otsoe.jpg", "r");
	int size = (int) rf.length();
	byte imext[] = new byte[size];
	rf.readFully(imext);
	rf.close();
	Image img1 = Image.getInstance(imext);
	img1.setAbsolutePosition(50, 500);
	document.add(img1);

	// creation of an image of 100 x 100 pixels (x 3 bytes for the Red,
	// Green and Blue value)
	byte data[] = new byte[100 * 100 * 3];
	for (int k = 0; k < 100; ++k) {
		for (int j = 0; j < 300; j += 3) {
			data[k * 300 + j] = (byte) (255 * Math.sin(j * .5 * Math.PI / 300));
			data[k * 300 + j + 1] = (byte) (256 - j * 256 / 300);
			data[k * 300 + j + 2] = (byte) (255 * Math.cos(k * .5 * Math.PI / 100));
		}
	}
	Image img2 = Image.getInstance(100, 100, 3, 8, data);
	img2.setAbsolutePosition(200, 200);
	document.add(img2);

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