com.itextpdf.text.pdf.PdfWriter Java Examples

static byte[] createSimpleCircleGraphicsPdf(int radius, int gap, int count) throws DocumentException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();

    float y = writer.getPageSize().getTop();
    for (int i = 0; i < count; i++)
    {
        Rectangle pageSize = writer.getPageSize();
        if (y <= pageSize.getBottom() + 2*radius)
        {
            y = pageSize.getTop();
            writer.getDirectContent().fillStroke();
            document.newPage();
        }
        writer.getDirectContent().circle(pageSize.getLeft() + pageSize.getWidth() * Math.random(), y-radius, radius);
        y-= 2*radius + gap;
    }
    writer.getDirectContent().fillStroke();
    document.close();

    return baos.toByteArray();
}
 

@Override
public void exportDeck(MagicDeck deck, File f) throws IOException {
	PdfPTable table = new PdfPTable(3);
	table.setHorizontalAlignment(Element.ALIGN_CENTER);

	try {
		document = new Document(PageSize.A4, 5, 5, 10, 5);
		document.addAuthor(getString("AUTHOR"));
		document.addCreationDate();
		document.addCreator(MTGConstants.MTG_APP_NAME);
		document.addTitle(deck.getName());

		PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(f));
		document.open();
		document.add(new Chunk(""));
		for (MagicCard card : deck.getMainAsList()) {
			table.addCell(getCells(card));
			notify(card);
		}
		document.add(table);
		document.close();
		writer.close();
	} catch (Exception e) {
		logger.error("Error in pdf creation " + f, e);
	}
}
 

public void createPdf(String file) throws IOException, DocumentException {
    // step 1
    Document document = new Document();
    // step 2
    PdfWriter.getInstance(document, new FileOutputStream(file));
    // step 3
    document.open();
    // step 4
    StringBuilder sb = new StringBuilder();
    sb.append("<div>\n<p align=\"center\">");
    sb.append("<font size=\"5\">");
    sb.append("<b>&nbsp;<font color=\"#32cd32\">My centered Para</font></b>");
    sb.append("</font>");
    sb.append("<font color=\"#32cd32\">&nbsp;</font>");
    sb.append("</p>\n</div>");
    
    PdfPTable table = new PdfPTable(1);
    PdfPCell cell = new PdfPCell();
    ElementList list = XMLWorkerHelper.parseToElementList(sb.toString(), null);
    for (Element element : list) {
        cell.addElement(element);
    }
    table.addCell(cell);
    document.add(table);
    
    // step 5
    document.close();
}
 

/**
 * <a href="http://stackoverflow.com/questions/40947306/strange-setrowspan-error-not-working">
 * Strange setRowspan error/not working
 * </a>
 * <p>
 * Selecting 1 header row and having a cell in the first row which spans 2 rows
 * does not match. iText ignores the row span resulting in the weird appearance.
 * </p>
 */
@Test
public void testRowspanWithHeaderRows() throws IOException, DocumentException
{
    File file = new File(RESULT_FOLDER, "rowspanWithHeaderRows.pdf");
    OutputStream os = new FileOutputStream(file);

    Document document = new Document();
    /*PdfWriter writer =*/ PdfWriter.getInstance(document, os);
    document.open();

    document.add(createHeaderContent());
    document.newPage();
    document.add(createHeaderContent(new int[] {5,5,5,5,5}));

    document.close();
}
 

public void cellLayout(PdfPCell cell, Rectangle position,
                               PdfContentByte[] canvases) {
            PdfWriter writer = canvases[0].getPdfWriter();
            float x = position.getLeft();
            float y = position.getBottom();
            Rectangle rect = new Rectangle(x-5, y-5, x+5, y+5);
            RadioCheckField checkbox = new RadioCheckField(
                    writer, rect, name, "Yes");
            checkbox.setCheckType(RadioCheckField.TYPE_CROSS);
            checkbox.setChecked(check);
// change: set border color
            checkbox.setBorderColor(BaseColor.BLACK);

            try {
                pdfStamper.addAnnotation(checkbox.getCheckField(), page);
            } catch (Exception e) {
                throw new ExceptionConverter(e);
            }
        }
 

@Override
protected void renderMergedOutputModel(Map<String, Object> model,
        HttpServletRequest request, HttpServletResponse response) throws Exception {
    // IE workaround: write into byte array first.
    ByteArrayOutputStream baos = createTemporaryOutputStream();
 
    // Apply preferences and build metadata.
    Document document = newDocument();
    PdfWriter writer = newWriter(document, baos);
    prepareWriter(model, writer, request);
    buildPdfMetadata(model, document, request);
 
    // Build PDF document.
    document.open();
    buildPdfDocument(model, document, writer, request, response);
    document.close();
 
    // Flush to HTTP response.
    writeToResponse(response, baos);
}
 

PdfAnnotation createAnnotation(PdfWriter writer, Rectangle rect, String contents) throws DocumentException, IOException {
    PdfContentByte cb = writer.getDirectContent();
    PdfAppearance cs = cb.createAppearance(rect.getWidth(), rect.getHeight());

    cs.rectangle(0 , 0, rect.getWidth(), rect.getHeight());
    cs.fill();

    cs.setFontAndSize(BaseFont.createFont(BaseFont.HELVETICA, BaseFont.WINANSI, BaseFont.NOT_EMBEDDED), 12);                        
    cs.beginText();
    cs.setLeading(12 + 1.75f);
    cs.moveText(.75f, rect.getHeight() - 12 + .75f);
    cs.showText(contents);
    cs.endText();

    return PdfAnnotation.createFreeText(writer, rect, contents, cs);
}
 

static byte[] createRotatedIndirectTextPdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();
    PdfReader reader = new PdfReader(createSimpleTextPdf());
    PdfImportedPage template = writer.getImportedPage(reader, 1);
    Rectangle pageSize = reader.getPageSize(1);
    writer.getDirectContent().addTemplate(template, .7f, .7f, -.7f, .7f, 400, -200);
    document.newPage();
    writer.getDirectContent().addTemplate(template, pageSize.getLeft(), pageSize.getBottom());
    document.close();

    return baos.toByteArray();
}
 

static byte[] createSimpleImagePdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter.getInstance(document, baos);
    document.open();

    BufferedImage bim = new BufferedImage(500, 500, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = bim.createGraphics();
    g2d.setColor(Color.BLUE);
    g2d.fillRect(0, 0, 500, 500);
    g2d.dispose();

    Image image = Image.getInstance(bim, null);
    document.add(image);

    document.close();

    return baos.toByteArray();
}
 

static byte[] createRotatedImagePdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();

    PdfContentByte directContent = writer.getDirectContent();

    BufferedImage bim = new BufferedImage(1000, 250, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = bim.createGraphics();
    g2d.setColor(Color.BLUE);
    g2d.fillRect(0, 0, 500, 500);
    g2d.dispose();

    Image image = Image.getInstance(bim, null);
    directContent.addImage(image, 0, 500, -500, 0, 550, 50);

    document.close();

    return baos.toByteArray();
}
 

static byte[] createMultiUseImagePdf() throws DocumentException, IOException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter.getInstance(document, baos);
    document.open();

    BufferedImage bim = new BufferedImage(500, 250, BufferedImage.TYPE_INT_RGB);
    Graphics2D g2d = bim.createGraphics();
    g2d.setColor(Color.BLUE);
    g2d.fillRect(0, 0, 250, 250);
    g2d.dispose();

    Image image = Image.getInstance(bim, null);
    document.add(image);
    document.add(image);
    document.add(image);

    document.close();

    return baos.toByteArray();
}
 

public static void main(String[] args) {
    
    try {
        
        Document document = new Document();
        PdfWriter.getInstance(document, new FileOutputStream("iTextTable.pdf"));

        document.open();

        PdfPTable table = new PdfPTable(3);
        addTableHeader(table);
        addRows(table);
        addCustomRows(table);

        document.add(table);
        document.close();
        
    } catch (Exception e) {
        e.printStackTrace();
    }
}
 

@Override
public void onEndPage(PdfWriter writer, Document document) {
	List<Page> pages=report.getPages();
	int pageNumber=writer.getPageNumber();
	if(pageNumber>pages.size()){
		return;
	}
	Page page=pages.get(pageNumber-1);
	HeaderFooter header=page.getHeader();
	HeaderFooter footer=page.getFooter();
	if(header!=null){
		buildTable(writer,header,true,report);			
	}
	if(footer!=null){
		buildTable(writer,footer,false,report);						
	}
}
 

static byte[] createSimpleTextPdf() throws DocumentException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter.getInstance(document, baos);
    document.open();
    for (int i = 1; i < 20; i++)
    {
        Paragraph paragraph = new Paragraph();
        for (int j = 0; j < i; j++)
            paragraph.add("Hello World! ");
        document.add(paragraph);
    }
    document.close();

    return baos.toByteArray();
}
 

/**
 * <a href="http://stackoverflow.com/questions/32162759/columntext-showtextaligned-vs-columntext-setsimplecolumn-top-alignment">
 * ColumnText.ShowTextAligned vs ColumnText.SetSimpleColumn Top Alignment
 * </a>
 * <p>
 * Indeed, the coordinates do not line up. The y coordinate of 
 * {@link ColumnText#showTextAligned(PdfContentByte, int, Phrase, float, float, float)}
 * denotes the baseline while {@link ColumnText#setSimpleColumn(Rectangle)} surrounds
 * the text to come.
 * </p>
 */
@Test
public void testShowTextAlignedVsSimpleColumnTopAlignment() throws DocumentException, IOException
{
    Document document = new Document(PageSize.A4);

    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(RESULT_FOLDER, "ColumnTextTopAligned.pdf")));
    document.open();

    Font fontQouteItems = new Font(BaseFont.createFont(), 12);
    PdfContentByte canvas = writer.getDirectContent();

    // Item Number
    ColumnText.showTextAligned(canvas, Element.ALIGN_CENTER, new Phrase("36222-0", fontQouteItems), 60, 450, 0);

    // Estimated Qty
    ColumnText.showTextAligned(canvas, Element.ALIGN_CENTER, new Phrase("47", fontQouteItems), 143, 450, 0);

    // Item Description
    ColumnText ct = new ColumnText(canvas); // Uses a simple column box to provide proper text wrapping
    ct.setSimpleColumn(new Rectangle(193, 070, 390, 450));
    ct.setText(new Phrase("In-Situ : Poly Cable - 100'\nPoly vented rugged black gable 100ft\nThis is an additional description. It can wrap an extra line if it needs to so this text is long.", fontQouteItems));
    ct.go();

    document.close();
}
 

/**
 * <a href="http://stackoverflow.com/questions/35699167/double-space-not-being-preserved-in-pdf">
 * Double space not being preserved in PDF
 * </a>
 * <p>
 * Indeed, the double space collapses into a single one when copying&pasting from the
 * generated PDF displayed in Adobe Reader. On the other hand the gap for the double
 * space is twice as wide as for the single space. So this essentially is a quirk of
 * copy&paste of Adobe Reader (and some other PDF viewers, too).
 * </p>
 */
@Test
public void testDoubleSpace() throws DocumentException, IOException
{
    try (   OutputStream pdfStream = new FileOutputStream(new File(RESULT_FOLDER, "DoubleSpace.pdf")))
    {
        PdfPTable table = new PdfPTable(1);
        table.getDefaultCell().setBorderWidth(0.5f);
        table.getDefaultCell().setBorderColor(BaseColor.LIGHT_GRAY);

        table.addCell(new Phrase("SINGLE SPACED", new Font(BaseFont.createFont(), 36)));
        table.addCell(new Phrase("DOUBLE  SPACED", new Font(BaseFont.createFont(), 36)));
        table.addCell(new Phrase("TRIPLE   SPACED", new Font(BaseFont.createFont(), 36)));

        Document pdfDocument = new Document(PageSize.A4.rotate(), 0, 0, 0, 0);
        PdfWriter.getInstance(pdfDocument, pdfStream);
        pdfDocument.open();
        pdfDocument.add(table);
        pdfDocument.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/38989235/itext-html-to-pdf-memory-leak">
 * IText HTML to PDF memory leak
 * </a>
 * <p>
 * The OP's code plus a save-to-file.
 * </p>
 */
public void testDevelofersScenario(String outputName) throws IOException, DocumentException
{
    final String content = "<!--?xml version=\"1.0\" encoding=\"UTF-8\"?-->\n<html>\n <head>\n    <title>Title</title>\n    \n   \n </head>\n"
            + "\n    \n<body>  \n  \n      \nEXAMPLE\n\n</body>\n</html>";

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);        
    document.open();
    InputStream is = new ByteArrayInputStream(content.getBytes());
    XMLWorkerHelper.getInstance().parseXHtml(writer, document, is);

    document.close();
    
    baos.writeTo(new FileOutputStream(new File(RESULT_FOLDER, outputName)));
}
 

public void createDirectoryAndSaveFile(PdfWriter imageToSave, String fileName) throws FileNotFoundException {


        File direct = new File(Environment.getExternalStorageDirectory() + "/TutorialesHackro");

        if (!direct.exists()) {
            File wallpaperDirectory = new File("/sdcard/TutorialesHackro/");
            wallpaperDirectory.mkdirs();
        }

        File file = new File(new File("/sdcard/TutorialesHackro/"), fileName);
        if (file.exists()) {
            file.delete();
        }
        try {
            FileOutputStream out = new FileOutputStream(file);

            out.flush();
            out.close();
        } catch (Exception e) {
            e.printStackTrace();
            Log.e("edwq",e.getMessage());
        }
    }
 

/**
 * <a href="http://stackoverflow.com/questions/41743574/itextpdf-creates-unvalid-pdf-document">
 * Itextpdf creates unvalid pdf document
 * </a>
 * <p>
 * CasperSlynge.html
 * </p>
 * <p>
 * Works for me. Admittedly, I replaced the {@link ByteArrayInputStream} by a
 * resource {@link InputStream} and the {@link ByteArrayOutputStream} by a
 * {@link FileOutputStream}.
 * </p>
 * <p>
 * I also added a `Charset` but the test created a valid file without, too.
 * </p>
 */
@Test
public void testCreatePdfLikeCasperSlynge() throws IOException, DocumentException
{
    try (   InputStream resource = getClass().getResourceAsStream("CasperSlynge.html");
            FileOutputStream result = new FileOutputStream(new File(RESULT_FOLDER, "CasperSlynge.pdf")))
    {
        // step 1
        Document document = new Document();
        // step 2
        PdfWriter writer = PdfWriter.getInstance(document, result);
        // step 3
        document.open();
        // step 4
        XMLWorkerHelper.getInstance().parseXHtml(writer, document, resource, Charset.forName("UTF8"));
        // step 5
        document.close();
    }
}
 

private static void createRectangle(PdfWriter writer, float x, float y, float width, float height, BaseColor color)
{
    float posX = Utilities.millimetersToPoints(x);
    float posY = Utilities.millimetersToPoints(y);

    float widthX = Utilities.millimetersToPoints(width + x);
    float heightY = Utilities.millimetersToPoints(height + y);

    Rectangle rectangle = new Rectangle(posX, posY, widthX, heightY);

    PdfContentByte canvas = writer.getDirectContent();
    rectangle.setBorder(Rectangle.BOX);
    rectangle.setBorderWidth(1);
    rectangle.setBorderColor(color);
    canvas.rectangle(rectangle);
}
 

@Test
public void testParagraphBackgroundEventListener() throws DocumentException, FileNotFoundException
{
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(RESULT_FOLDER, "document-with-paragraph-backgrounds.pdf")));
    ParagraphBackground border = new ParagraphBackground();
    writer.setPageEvent(border);
    document.open();
    document.add(new Paragraph("Hello,"));
    document.add(new Paragraph("In this document, we'll add several paragraphs that will trigger page events. As long as the event isn't activated, nothing special happens, but let's make the event active and see what happens:"));
    border.setActive(true);
    document.add(new Paragraph("This paragraph now has a background. Isn't that fantastic? By changing the event, we can even draw a border, change the line width of the border and many other things. Now let's deactivate the event."));
    border.setActive(false);
    document.add(new Paragraph("This paragraph no longer has a background."));
    document.close();
}
 

@Test
public void testWithWriter() throws DocumentException, IOException
{
    InputStream resourceStream = getClass().getResourceAsStream("test.pdf");
    try
    {
        PdfReader reader = new PdfReader(resourceStream);
        Rectangle pageSize = reader.getPageSize(1);

        Rectangle rect = getOutputPageSize(pageSize, reader, 1);

        Document document = new Document(rect, 0, 0, 0, 0);
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(RESULT_FOLDER, "test-trimmed-writer.pdf")));

        document.open();
        PdfImportedPage page;

        // Go through all pages
        int n = reader.getNumberOfPages();
        for (int i = 1; i <= n; i++)
        {
            document.newPage();
            page = writer.getImportedPage(reader, i);
            System.out.println("BBox:  "+ page.getBoundingBox().toString());
            Image instance = Image.getInstance(page);
            document.add(instance);
            Rectangle outputPageSize = document.getPageSize();
            System.out.println(outputPageSize.toString());
        }
        document.close();
    }
    finally
    {
        if (resourceStream != null)
            resourceStream.close();
    }
}
 

/**
 * This method creates a PDF with a single styled paragraph.
 */
static byte[] createSimpleCircleGraphicsPdf() throws DocumentException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, baos);
    document.open();

    float y = writer.getPageSize().getTop(document.topMargin());
    float radius = 20;
    for (int i = 0; i < 3; i++)
    {
        Rectangle pageSize = writer.getPageSize();
        writer.getDirectContent().circle(
                pageSize.getLeft(document.leftMargin()) + (pageSize.getWidth() - document.leftMargin() - document.rightMargin()) * Math.random(),
                y-radius, radius);
        y-= 2*radius + 5;
    }

    writer.getDirectContent().fillStroke();
    document.close();

    return baos.toByteArray();
}
 

/**
 * <a href="http://stackoverflow.com/questions/34681893/itextsharp-extra-space-between-lines">
 * iTextSharp: Extra space between lines
 * </a>
 * <p>
 * Indeed, the OP's {@link Phrase#setLeading(float, float)} calls are ignored,
 * cf. {@link #testLikeUser3208131()}. The reason is that the op is working in
 * text mode. Thus, he has to use {@link ColumnText#setLeading(float, float)}
 * instead.
 * </p>
 */
@Test
public void testLikeUser3208131Fixed() throws DocumentException, FileNotFoundException
{
    Document document = new Document();
    PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(new File(RESULT_FOLDER, "interline-user3208131-fixed.pdf")));
    document.open();

    Font font = new Font(FontFamily.UNDEFINED, 4, Font.UNDEFINED, null);
    PdfContentByte cb = writer.getDirectContent();
    ColumnText ct = new ColumnText(cb);

    float gutter = 15;
    float colwidth = (document.getPageSize().getRight() - document.getPageSize().getLeft() - gutter) / 2;

    float[] left = { document.getPageSize().getLeft() + 133, document.getPageSize().getTop() - 35,
            document.getPageSize().getLeft() + 133, document.getPageSize().getBottom() };
    float[] right = { document.getPageSize().getLeft() + colwidth, document.getPageSize().getTop() - 35,
            document.getPageSize().getLeft() + colwidth, document.getPageSize().getBottom() };

    ct.setLeading(0.0f, 0.3f);
    for (int i = 0; i < 3; i++)
    {
        Phrase Ps = new Phrase("Test " + i + "\n", font);
        ct.addText(Ps);
        ct.addText(Chunk.NEWLINE);
    }
    ct.setColumns(left, right);
    ct.go();

    document.close();
}
 

static byte[] createSimpleTextPdf(String paragraphFormat, int paragraphCount) throws DocumentException
{
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    Document document = new Document();
    PdfWriter.getInstance(document, baos);
    document.open();
    for (int i = 0; i < paragraphCount; i++)
    {
        Paragraph paragraph = new Paragraph();
        paragraph.add(String.format(paragraphFormat, i));
        document.add(paragraph);
    }
    document.close();

    return baos.toByteArray();
}
 

/**
 * <a href="http://stackoverflow.com/questions/29001852/how-to-create-a-pdf-and-you-then-merge-another-pdf-to-the-same-document-using-it">
 * how to create a PDF and you then merge another pdf to the same document using itext
 * </a>
 * <p>
 * Testing the OP's method with <code>paginate</code> set to <code>false</code>
 * </p>
 */
@Test
public void testAppendPDFs() throws IOException, DocumentException
{
    try (
            InputStream testA4Stream = getClass().getResourceAsStream("testA4.pdf");
            InputStream fromStream = getClass().getResourceAsStream("from.pdf");
            InputStream prefaceStream = getClass().getResourceAsStream("preface.pdf");
            InputStream type3Stream = getClass().getResourceAsStream("Test_Type3_Problem.pdf");
            FileOutputStream output = new FileOutputStream(new File(RESULT_FOLDER, "appendPdfs.pdf"));
        )
    {
        Document document = new Document();
        PdfWriter writer = PdfWriter.getInstance(document, output);
        document.open();
        document.add(new Paragraph("Some content to start with"));
        appendPDFs(Arrays.asList(testA4Stream, fromStream, prefaceStream, type3Stream), writer, document, null, false);
        document.close();
    }
}
 

/**
 * <a href="http://stackoverflow.com/questions/38057241/itextpdf-different-margin-on-specific-page">
 * itextpdf different margin on specific page
 * </a>
 * <p>
 * This test shows how to set different margins to separate pages.
 * </p> 
 */
@Test
public void testChangingMargins() throws IOException, DocumentException
{
    StringBuilder builder = new StringBuilder("test");
    for (int i = 0; i < 100; i++)
        builder.append(" test");
    String test = builder.toString();
    
    try (   OutputStream pdfStream = new FileOutputStream(new File(RESULT_FOLDER, "ChangingMargins.pdf")))
    {
        Document pdfDocument = new Document(PageSize.A4.rotate(), 0, 0, 0, 0);
        PdfWriter.getInstance(pdfDocument, pdfStream);
        pdfDocument.open();

        for (int m = 0; m < pdfDocument.getPageSize().getWidth() / 2 && m < pdfDocument.getPageSize().getHeight() / 2; m += 100)
        {
            // pdfDocument.setMargins(m, m, 100, 100);
            pdfDocument.setMargins(m, m, m, m);
            pdfDocument.newPage();
            pdfDocument.add(new Paragraph(test));
        }

        pdfDocument.close();
    }
}
 

@Override
protected void renderMergedOutputModel(Map<String, Object> model, HttpServletRequest request, HttpServletResponse response) throws Exception  {
	// IE workaround: write into byte array first.
			ByteArrayOutputStream baos = createTemporaryOutputStream();

			// Apply preferences and build metadata.
			Document document = new Document();
			PdfWriter writer = PdfWriter.getInstance(document, baos);
			prepareWriter(model, writer, request);
			buildPdfMetadata(model, document, request);

			// Build PDF document.
			writer.setInitialLeading(16);
			document.open();
			buildPdfDocument(model, document, writer, request, response);
			document.close();

			// Flush to HTTP response.
			writeToResponse(response, baos);

	
}
 

public byte[] protectPDF(byte[] pdfContent) {
    try {
        ByteArrayOutputStream out = new ByteArrayOutputStream();
        PdfEncryptor.encrypt(new PdfReader(pdfContent), out, true, null, null, PdfWriter.ALLOW_COPY | PdfWriter.ALLOW_DEGRADED_PRINTING | PdfWriter.ALLOW_PRINTING | PdfWriter.ALLOW_SCREENREADERS);
        return out.toByteArray();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return pdfContent;
}
 

/**
 * <a href="http://stackoverflow.com/questions/44005834/changing-rowspans">
 * Changing rowspans
 * </a>
 * <p>
 * The original code used by the OP. This code adds the second cell
 * with rowspan 2 too early. Fixed in {@link #createPdfFixed(String)}.
 * </p>
 * @see #testUseRowspanLikeUser7968180()
 * @see #addCellToTableCzech(PdfPTable, int, int, String, int, int, String, float)
 */
public void createPdf(String dest) throws IOException, DocumentException {
    int horizontalAlignmentCenter = Element.ALIGN_CENTER;
    int verticalAlignmentMiddle = Element.ALIGN_MIDDLE;
    String fontTypeRegular = "c:/Windows/Fonts/arial.ttf";
    float fontSizeRegular = 10f;

    float[] columns = { 100, 50, 100, 50, 50, 50, 50, 50, 75, 50, 50, 50 };
    int numberOfColumns = columns.length;
    Document document = new Document(PageSize.A4.rotate(), 36, 36, 36, 36);
    PdfWriter.getInstance(document, new FileOutputStream(dest));
    document.open();

    PdfPTable subTableZkouska = new PdfPTable(numberOfColumns);
    subTableZkouska.setTotalWidth(columns);
    subTableZkouska.setLockedWidth(true);

    addCellToTableCzech(subTableZkouska, horizontalAlignmentCenter,
            verticalAlignmentMiddle, "Brno �pit�lka 8 Brno H�jeck� 1068/14 CZ5159", 1,
            2, fontTypeRegular, fontSizeRegular);

    addCellToTableCzech(subTableZkouska, horizontalAlignmentCenter,
            verticalAlignmentMiddle, "38", 1, 2, fontTypeRegular, fontSizeRegular);

    for (int i = 0; i < 19; i++) {
        addCellToTableCzech(subTableZkouska, horizontalAlignmentCenter,
                verticalAlignmentMiddle, "38", 1, 1, fontTypeRegular,
                fontSizeRegular);
    }
    addCellToTableCzech(subTableZkouska, horizontalAlignmentCenter,
            verticalAlignmentMiddle, "38", 1, 1, fontTypeRegular, fontSizeRegular);

    document.add(subTableZkouska);
    document.close();
}