Java 类com.lowagie.text.Paragraph 实例源码

/**
     * Título del documento.
     * @param document Documento en cuestión
     * @throws DocumentException Excepcion generada por algún problema
     */
    private void addTitlePage(Document document) throws DocumentException {
        Paragraph preface = new Paragraph();
        addEmptyLine(preface, 1);
        preface.add(new Paragraph("CitizensLoader PDF", catFont));

//      addEmptyLine(preface, 1);
//      // Will create: Report generated by: _name, _date
//      preface.add(new Paragraph("Report generated by: " + System.getProperty("user.name") + ", " + new Date(), //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
//              smallBold));
//      addEmptyLine(preface, 3);
//      preface.add(new Paragraph("This document describes something which is very important ", smallBold));
//
//      addEmptyLine(preface, 8);
//
//      preface.add(new Paragraph(
//              "This document is a preliminary version and not subject to your license agreement or any other agreement with vogella.com ;-).",
//              redFont));
//
//      document.add(preface);
//      // Start a new page
//      document.newPage();
        document.add(preface);
        addEmptyLine(preface, 2);
    }

private float addImage(PdfPCell cell, String name) {
    try {
        java.awt.Image awtImage = (java.awt.Image)iImages.get(name);
        if (awtImage==null) return 0;
        Image img = Image.getInstance(awtImage, Color.WHITE);
        Chunk ck = new Chunk(img, 0, 0);
        if (cell.getPhrase()==null) {
            cell.setPhrase(new Paragraph(ck));
            cell.setVerticalAlignment(Element.ALIGN_TOP);
            cell.setHorizontalAlignment(Element.ALIGN_CENTER);
        } else {
            cell.getPhrase().add(ck);
        }
        return awtImage.getWidth(null);
    } catch (Exception e) {
        return 0;
    }
}

private float addText(PdfPCell cell, String text, boolean bold, boolean italic, boolean underline, Color color, Color bgColor) {
    Font font = PdfFont.getFont(bold, italic, underline, color);
    Chunk chunk = new Chunk(text, font);
    if (bgColor!=null) chunk.setBackground(bgColor);
    if (cell.getPhrase()==null) {
        cell.setPhrase(new Paragraph(chunk));
        cell.setVerticalAlignment(Element.ALIGN_TOP);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    } else {
        cell.getPhrase().add(chunk);
    }
    float width = 0; 
    if (text.indexOf('\n')>=0) {
        for (StringTokenizer s = new StringTokenizer(text,"\n"); s.hasMoreTokens();)
            width = Math.max(width,font.getBaseFont().getWidthPoint(s.nextToken(), font.getSize()));
    } else 
        width = Math.max(width,font.getBaseFont().getWidthPoint(text, font.getSize()));
    return width;
}

public boolean handleCloseGroup() {
    this.onCloseGroup();    // event handler

    if(this.rtfParser.isImport()) {
        if(this.buffer.length()>0) {
            writeBuffer();
        }
        writeText("}");
    }
    if(this.rtfParser.isConvert()) {
        if(this.buffer.length() > 0 && this.iTextParagraph == null) {
            this.iTextParagraph = new Paragraph();
        }
        if(this.buffer.length() > 0 ) {
            Chunk chunk = new Chunk();
            chunk.append(this.buffer.toString());
            this.iTextParagraph.add(chunk);
        }
        if(this.iTextParagraph != null) {
            addParagraphToDocument();
        }
    }
    return true;
}

@Test
public void writeFile() throws IOException, DocumentException {
    File file = File.createTempFile("testfile", ".pdf");
    File fileWithPageNumbers = File.createTempFile("testfilewithpagenumbers", ".pdf");
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream(file));
    document.open();
    for(int i = 0; i < 100; i++) {
    document.add(new Paragraph("Test"));
    }
    document.close();
    addPageNumbers(file, fileWithPageNumbers.getAbsolutePath());
    Assert.assertTrue(file.length() > 0);
    Assert.assertTrue(fileWithPageNumbers.length() > 0);
    file.delete();
    fileWithPageNumbers.delete();
}

/**
 * Creates a Paragraph object based on a list of properties.
 * @param attributes
 * @return a Paragraph
 */
public static Paragraph getParagraph(Properties attributes) {
    Paragraph paragraph = new Paragraph(getPhrase(attributes));
    String value;
    value = attributes.getProperty(ElementTags.ALIGN);
    if (value != null) {
        paragraph.setAlignment(value);
    }
    value = attributes.getProperty(ElementTags.INDENTATIONLEFT);
    if (value != null) {
        paragraph.setIndentationLeft(Float.parseFloat(value + "f"));
    }
    value = attributes.getProperty(ElementTags.INDENTATIONRIGHT);
    if (value != null) {
        paragraph.setIndentationRight(Float.parseFloat(value + "f"));
    }
    return paragraph;
}

private static void setParagraphLeading(Paragraph p, String leading) {
    if (leading == null) {
        p.setLeading(0, 1.5f);
        return;
    }
    try {
        StringTokenizer tk = new StringTokenizer(leading, " ,");
        String v = tk.nextToken();
        float v1 = Float.parseFloat(v);
        if (!tk.hasMoreTokens()) {
            p.setLeading(v1, 0);
            return;
        }
        v = tk.nextToken();
        float v2 = Float.parseFloat(v);
        p.setLeading(v1, v2);
    } catch (Exception e) {
        p.setLeading(0, 1.5f);
    }
}

/**
 * Generates a PDF file with the text 'Hello World'
 * 
 */
@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 System.out (and a txt file)
    PdfWriter w = PdfWriter.getInstance(document, System.out);
    w.setCloseStream(false); // System.out should not be closed
    PdfWriter.getInstance(document, PdfTestBase.getOutputStream("HelloWorld.txt"));

    // step 3: we open the document
    document.open();
    // step 4: we add a paragraph to the document
    document.add(new Paragraph("Hello World"));

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

/**
 * Generates a PDF file with the text 'Hello World'
 * 
 */
@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("HelloWorld.pdf"));

    // step 3: we open the document
    document.open();
    // step 4: we add a paragraph to the document
    document.add(new Paragraph("Hello World"));

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

@Test
public void writeSimpeFile () throws IOException, DocumentException {
    File file = File.createTempFile("testfileVersion", ".pdf");
    System.out.println(file.getAbsolutePath());
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream(file));
    document.open();
    document.add(new Paragraph(Document.getProduct()));
    document.add(new Paragraph(Document.getVersion()));
    document.add(new Paragraph(Document.getRelease()));
    document.close();

    System.out.println(Document.getProduct());
    System.out.println(Document.getVersion());
    System.out.println(Document.getRelease());
}

/**
 * Creates a PDF document with pages in portrait/landscape.
 */
@Test
public void main() throws Exception {

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

    // step 2:
    // we create a writer that listens to the document
    // and directs a PDF-stream to a file

    PdfWriter.getInstance(document, PdfTestBase.getOutputStream("LandscapePortrait.pdf"));

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

    // step 4: we add some content
    document.add(new Paragraph(
            "To create a document in landscape format, just make the height smaller than the width. For instance by rotating the PageSize Rectangle: PageSize.A4.rotate()"));
    document.setPageSize(PageSize.A4);
    document.newPage();
    document.add(new Paragraph("This is portrait again"));

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

/**
 * Generates a PDF file with the text 'Hello World' that is protected with
 * the password 'Hello'.
 * 
 */
@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("HelloEncrypted.pdf"));
    writer.setEncryption("Hello".getBytes(), "World".getBytes(), PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_PRINTING,
            PdfWriter.STANDARD_ENCRYPTION_128);
    // step 3: we open the document
    document.open();
    // step 4: we add a paragraph to the document
    document.add(new Paragraph("Hello World"));

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

/**
 * Generates a PDF file with metadata
 * 
 */
@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("HelloWorldMeta.pdf"));

    // step 3: we add some metadata open the document
    document.addTitle("Hello World example");
    document.addSubject("This example explains how to add metadata.");
    document.addKeywords("iText, Hello World, step 3, metadata");
    document.addCreator("My program using iText");
    document.addAuthor("Bruno Lowagie");
    document.open();
    // step 4: we add a paragraph to the document
    document.add(new Paragraph("Hello World"));

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

/**
 * Creates a PDF document and shows the iText version.
 */
@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("version.pdf"));

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

    // step 4:
    document.add(new Paragraph("This page was made using " + Document.getVersion()));

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

/**
 * Demonstrates the use of PageEvents.
 */
@Test
public void main() throws Exception {
    Document document = new Document(PageSize.A4, 50, 50, 70, 70);

    PdfWriter writer = PdfWriter.getInstance(document,
            PdfTestBase.getOutputStream("endpage.pdf"));
    writer.setPageEvent(new EndPageTest());
    document.open();
    String text = "Lots of text. ";
    for (int k = 0; k < 10; ++k)
        text += text;
    document.add(new Paragraph(text));
    document.close();

}

/**
 * We only alter the handling of some endtags.
 * 
 * @param uri
 *            the uri of the namespace
 * @param lname
 *            the local name of the tag
 * @param name
 *            the name of the tag
 */
public void endElement(String uri, String lname, String name) {
    if (myTags.containsKey(name)) {
        XmlPeer peer = (XmlPeer) myTags.get(name);
        // we don't want the document to be close
        // because we are going to add a page after the xml is parsed
        if (isDocumentRoot(peer.getTag())) {
            return;
        }
        handleEndingTags(peer.getTag());
        // we want to add a paragraph after the speaker chunk
        if ("SPEAKER".equals(name)) {
            try {
                TextElementArray previous = (TextElementArray) stack
                        .pop();
                previous.add(new Paragraph(16));
                stack.push(previous);
            } catch (EmptyStackException ese) {
            }
        }
    } else {
        handleEndingTags(name);
    }
}

/**
 * Changing the width of font glyphs.
 * 
 * @param args
 *            no arguments needed
 */
@Test
public void main() throws Exception {
    // step 1
    Document document = new Document(PageSize.A4, 50, 50, 50, 50);
    // step 2
    PdfWriter.getInstance(document, PdfTestBase.getOutputStream("fixedfontwidth.pdf"));
    // step 3
    document.open();
    // step 4
    BaseFont bf = BaseFont.createFont("Helvetica", "winansi", false, false, null, null);
    int widths[] = bf.getWidths();
    for (int k = 0; k < widths.length; ++k) {
        if (widths[k] != 0)
            widths[k] = 1000;
    }
    bf.setForceWidthsOutput(true);
    document.add(new Paragraph("A big text to show Helvetica with fixed width.", new Font(bf)));
    // step 5
    document.close();
}

/**
 * Use of paragraph stylesheets.
 * 
 * 
 */
@Test
public void main() throws Exception {
    Document document = new Document();
    RtfWriter2.getInstance(document, PdfTestBase.getOutputStream("BasicStylesheets.rtf"));

    document.open();

    // Simply set the stylesheet you wish to use as the Font
    // of the Paragraph
    document.add(new Paragraph("This is a heading", RtfParagraphStyle.STYLE_HEADING_1));

    document.add(new Paragraph("Just some text that is formatted " + "in the default style.",
            RtfParagraphStyle.STYLE_NORMAL));

    document.close();

}

/**
 * Using oth
 */
@Test
public void main() throws Exception {
    // step 1
    Document document = new Document(PageSize.A4, 50, 50, 50, 50);
    // step 2
    PdfWriter.getInstance(document,
            PdfTestBase.getOutputStream("opentypefont.pdf"));
    // step 3
    document.open();
    // step 4
    BaseFont bf = BaseFont.createFont(PdfTestBase.RESOURCES_DIR
            + "liz.otf", BaseFont.CP1252, true);
    String text = "Some text with the otf font LIZ.";
    document.add(new Paragraph(text, new Font(bf, 14)));
    // step 5
    document.close();
}

/**
 * Generates an Acroform with a Signature
 */
@Test
public void main() throws Exception {

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

    // step 2:
    PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("signature.pdf"));

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

    // step 4:
    PdfAcroForm acroForm = writer.getAcroForm();
    document.add(new Paragraph("Hello World"));
    acroForm.addSignature("mysig", 73, 705, 149, 759);

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

/**
 * Creates a document with a javascript action.
 * 
 */
@Test
public void main() throws Exception {

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

    // step 2:
    PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("JavaScriptAction.pdf"));
    // step 3: we add Javascript as Metadata and we open the document
    document.open();
    // step 4: we add some content
    Paragraph p = new Paragraph(new Chunk("Click to say Hello").setAction(PdfAction.javaScript(
            "app.alert('Hello');\r", writer)));
    document.add(p);

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

}

/**
 * Creates a document with Named Actions.
 * 
 * @param args The file to open
 */
public void main(String... args) 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("OpenApplication.pdf"));
    // step 3: we open the document
    document.open();
    // step 4: we add some content
    String application = args[0];
    Paragraph p = new Paragraph(new Chunk("Click to open " + application).setAction(
            new PdfAction(application, null, null, null)));
    document.add(p);

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

}

/**
 * Creates a document with chained Actions.
 * 
 */
@Test
public void main() throws Exception {

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

    // step 2:
    PdfWriter writer = PdfWriter.getInstance(document, PdfTestBase.getOutputStream("ChainedActions.pdf"));
    // step 3: we add Javascript as Metadata and we open the document
    document.open();
    // step 4: we add some content
    PdfAction action = PdfAction.javaScript("app.alert('Welcome at my site');\r", writer);
    action.next(new PdfAction("http://www.lowagie.com/iText/"));
    Paragraph p = new Paragraph(new Chunk("Click to go to Bruno's site").setAction(action));
    document.add(p);

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

}

/**
 * Using FontSelector.
 */
@Test
public void main() throws Exception {
    // step 1
    Document document = new Document();
    // step 2
    PdfWriter.getInstance(document, PdfTestBase.getOutputStream("differentfonts.pdf"));
    // step 3
    document.open();
    // step 4
    Paragraph p = new Paragraph();
    p.add(new Chunk("This text is in Times Roman. This is ZapfDingbats: ", new Font(Font.TIMES_ROMAN, 12)));
    p.add(new Chunk("abcdefghijklmnopqrstuvwxyz", new Font(Font.ZAPFDINGBATS, 12)));
    p.add(new Chunk(". This is font Symbol: ", new Font(Font.TIMES_ROMAN, 12)));
    p.add(new Chunk("abcdefghijklmnopqrstuvwxyz", new Font(Font.SYMBOL, 12)));
    document.add(new Paragraph(p));
    // step 5
    document.close();

}

/**
 * Generates an HTML page with the text 'Hello World'
 * 
 */
@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 HTML-stream to a file
    HtmlWriter.getInstance(document, PdfTestBase.getOutputStream("HelloWorld.html"));

    // step 3: we open the document
    document.open();
    // step 4: we add a paragraph to the document
    document.add(new Paragraph("Hello World"));

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

private static PdfPCell makeCell(String text, int vAlignment, int hAlignment, Font font, float leading,
        float padding, Rectangle borders, boolean ascender, boolean descender) {
    Paragraph p = new Paragraph(text, font);
    p.setLeading(leading);

    PdfPCell cell = new PdfPCell(p);
    cell.setLeading(leading, 0);
    cell.setVerticalAlignment(vAlignment);
    cell.setHorizontalAlignment(hAlignment);
    cell.cloneNonPositionParameters(borders);
    cell.setUseAscender(ascender);
    cell.setUseDescender(descender);
    cell.setUseBorderPadding(true);
    cell.setPadding(padding);
    return cell;
}

/**
 * A very simple Table example.
 * 
 */
@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("MyFirstTable.pdf"));
    // step 3: we open the document
    document.open();
    // step 4: we create a table and add it to the document
    Table table = new Table(2, 2); // 2 rows, 2 columns
    table.addCell("0.0");
    table.addCell("0.1");
    table.addCell("1.0");
    table.addCell("1.1");
    document.add(table);
    document.add(new Paragraph("converted to PdfPTable:"));
    table.setConvert2pdfptable(true);
    document.add(table);

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

/**
 * Hello World! example
 * 
 */
@Test
public void main() throws Exception {
    // Step 1: Create a new Document
    Document document = new Document();

    // Step 2: Create a new instance of the RtfWriter2 with the document
    // and target output stream.
    RtfWriter2.getInstance(document, PdfTestBase.getOutputStream("HelloWorld.rtf"));

    // Step 3: Open the document.
    document.open();

    // Step 4: Add content to the document.
    document.add(new Paragraph("Hello World!"));

    // Step 5: Close the document. It will be written to the target output
    // stream.
    document.close();

}

public void createContent(WebInput wi, DocInfo di)throws ControllerException {
    Document pdfDoc = di.getPdfDocument();
    try {
        pdfDoc.add(new Paragraph("Hello World!"));
        try {
            BaseFont bf = BaseFont.createFont("STSong-Light",
                    "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
            Font FontChinese = new Font(bf, 12, Font.NORMAL);
            String info=wi.getParameter("info");
            Paragraph p0 = new Paragraph(info, FontChinese);
            pdfDoc.add(p0);
            Paragraph p1 = new Paragraph("Beetle Web Framework 页面生成PDF文件演示!", FontChinese);
            pdfDoc.add(p1);
        } catch (Exception ex1) {
            throw new ControllerException(ex1);
        }
    } catch (DocumentException ex) {
        throw new ControllerException(ex);
    }
}

private Paragraph generateContent(Grade grade) throws BadElementException {
    Paragraph content = new Paragraph();
    Table table = createTable(grade);

    content.add(table);
    return content;
}

public void addText(PdfPCell cell, String text, boolean bold) {
    if (text==null) return;
       if (text.indexOf("<span")>=0)
           text = text.replaceAll("</span>","").replaceAll("<span .*>", "");
    if (cell.getPhrase()==null) {
        cell.setPhrase(new Paragraph(text, PdfFont.getSmallFont(bold)));
        cell.setVerticalAlignment(Element.ALIGN_TOP);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    } else {
        cell.getPhrase().add(new Chunk("\n"+text, PdfFont.getSmallFont(bold)));
    }
}

public void addTextVertical(PdfPCell cell, String text, boolean bold) throws Exception  {
    if (text==null) return;
       if (text.indexOf("<span")>=0)
           text = text.replaceAll("</span>","").replaceAll("<span .*>", "");
       Font font = PdfFont.getFont(bold);
    BaseFont bf = font.getBaseFont();
    float width = bf.getWidthPoint(text, font.getSize());
    PdfTemplate template = iWriter.getDirectContent().createTemplate(2 * font.getSize() + 4, width);
    template.beginText();
    template.setColorFill(Color.BLACK);
    template.setFontAndSize(bf, font.getSize());
    template.setTextMatrix(0, 2);
    template.showText(text);
    template.endText();
    template.setWidth(width);
    template.setHeight(font.getSize() + 2);
    //make an Image object from the template
    Image img = Image.getInstance(template);
    img.setRotationDegrees(270);
    //embed the image in a Chunk
    Chunk ck = new Chunk(img, 0, 0);

    if (cell.getPhrase()==null) {
        cell.setPhrase(new Paragraph(ck));
        cell.setVerticalAlignment(Element.ALIGN_MIDDLE);
        cell.setHorizontalAlignment(Element.ALIGN_RIGHT);
    } else {
        cell.getPhrase().add(ck);
    }
}

public void addText(PdfPCell cell, String text, boolean bold) {
    if (text==null) return;
    if (text.indexOf("<span")>=0)
        text = text.replaceAll("</span>","").replaceAll("<span .*>", "");
    text = text.replaceAll("<br>", "\n");
    text = text.replaceAll("<BR>", "\n");
    if (cell.getPhrase()==null) {
        cell.setPhrase(new Paragraph(text, PdfFont.getFont(bold)));
        cell.setVerticalAlignment(Element.ALIGN_TOP);
        cell.setHorizontalAlignment(Element.ALIGN_CENTER);
    } else {
        cell.getPhrase().add(new Chunk("\n"+text, PdfFont.getFont(bold)));
    }
}

public void addText(PdfPCell cell, String text, boolean bold, boolean italic,  int orientation, Color color, boolean newLine) {
    if (text==null) return;
    if (cell.getPhrase()==null) {
        Chunk ch = new Chunk(text, PdfFont.getFont(bold, italic, color));
        cell.setPhrase(new Paragraph(ch));
        cell.setVerticalAlignment(Element.ALIGN_TOP);
        cell.setHorizontalAlignment(orientation);
    } else {
        cell.getPhrase().add(new Chunk((newLine?"\n":"")+text, PdfFont.getFont(bold, italic, color)));
    }
}

protected void printFooter() throws DocumentException {
    iEmpty=false;
    out("");
    out(renderEnd(renderMiddle((iFooter==null?"":iFooter),"Page "+(iPageNo+1)),(iPageId==null||iPageId.length()==0?"":iPageId)+"  "));
    if (iPrint!=null) {
        iPrint.print(iBuffer);
    } else {
        //FIXME: For some reason when a line starts with space, the line is shifted by one space in the resulting PDF (when using iText 5.0.2)
        Paragraph p = new Paragraph(iBuffer.toString().replace("\n ", "\n  "), PdfFont.getFixedFont());
        p.setLeading(9.5f); //was 13.5f
        iDoc.add(p);
    }
    iBuffer = new StringBuffer();
    iPageNo++;
}

protected void printFooter() throws DocumentException {
    out("");
    out(renderEnd(renderMiddle("","Page "+(iPageNo+1)),"<"+iCurrentSubjectArea.getSubjectAreaAbbreviation()+(iCourseNumber!=null?" "+iCourseNumber:"")+">  "));
    //FIXME: For some reason when a line starts with space, the line is shifted by one space in the resulting PDF (when using iText 5.0.2)
    Paragraph p = new Paragraph(iBuffer.toString().replace("\n ", "\n  "), PdfFont.getFixedFont());
    p.setLeading(9.5f); //was 13.5f
    iDoc.add(p);
    iBuffer = new StringBuffer();
    iPageNo++;
}

@Override
public void printHeader(String... fields) {
    iTable = new PdfPTable(fields.length - iHiddenColumns.size());
    iMaxWidth = new float[fields.length];
    iTable.setHeaderRows(1);
    iTable.setWidthPercentage(100);

    for (int idx = 0; idx < fields.length; idx++) {
        if (iHiddenColumns.contains(idx)) continue;
        String f = fields[idx];

        PdfPCell cell = new PdfPCell();
        cell.setBorder(Rectangle.BOTTOM);
        cell.setVerticalAlignment(Element.ALIGN_TOP);
        cell.setHorizontalAlignment(Element.ALIGN_LEFT);

        Font font = PdfFont.getFont(true);
        Paragraph ch = new Paragraph(f, font);
        ch.setLeading(0f, 1f);
        cell.addElement(ch);        
        iTable.addCell(cell);

        float width = 0; 
        if (f.indexOf('\n')>=0) {
            for (StringTokenizer s = new StringTokenizer(f,"\n"); s.hasMoreTokens();)
                width = Math.max(width,font.getBaseFont().getWidthPoint(s.nextToken(), font.getSize()));
        } else 
            width = Math.max(width,font.getBaseFont().getWidthPoint(f, font.getSize()));
        iMaxWidth[idx] = width;
    }
}

/** 
 * 功能说明：设置段落的样式，设置前半截内容和后半截内容格式不一样的段落样式</BR> 
 * 修改日：2011-04-27 
 * @author myclover 
 * @param content  前半截内容 
 * @param font     字体的样式 
 * @param firstLineIndent 首行缩进多少字符，16f约等于一个字符 
 * @param appendStr 后半截内容 
 * @return 
 */  
public static Paragraph setParagraphStyle(String content , Font font , float firstLineIndent , String appendStr){  
    Paragraph par = setParagraphStyle(content, font, 0f, 12f);  
    Phrase phrase = new Phrase();  
    phrase.add(par);  
    phrase.add(appendStr);  
    Paragraph paragraph = new Paragraph(phrase);  
    paragraph.setFirstLineIndent(firstLineIndent);  
    //设置对齐方式为两端对齐  
    paragraph.setAlignment(Paragraph.ALIGN_JUSTIFIED_ALL);  
    return paragraph;  
}

@Test
public void testAddedMetadata() throws Exception {
    String AUTHOR_NAME = "Mr Bean";
    String TITLE = "The title";

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    Document document = new Document();

    PdfWriter.getInstance(document, baos);

    document.open();
    document.addProducer();
    document.addAuthor(AUTHOR_NAME);
    document.addTitle(TITLE);
    document.add(new Paragraph("Hello World"));
    document.close();

    PdfReader r = new PdfReader(baos.toByteArray());

    // Metadata generated only on demand
    Assert.assertEquals(Document.getVersion(), r.getInfo().get("Producer"));

    Assert.assertEquals(AUTHOR_NAME, r.getInfo().get("Author"));
    Assert.assertEquals(TITLE, r.getInfo().get("Title"));

    r.close();
}

@Test
public void testBasicDocument() throws Exception {
    initializeDocument();
    writer.getDirectContent().saveState();
    document.add(new Paragraph("Hello World"));
    writer.getDirectContent().restoreState();
    document.close();
}