Java Code Examples for org.apache.pdfbox.pdmodel.PDPageContentStream#newLineAtOffset()

/**
 * @see #testJoinSmallAndBig()
 */
PDDocument prepareSmallPdf() throws IOException {
    PDDocument document = new PDDocument();
    PDPage page = new PDPage(new PDRectangle(72, 72));
    document.addPage(page);
    PDPageContentStream contentStream = new PDPageContentStream(document, page);
    contentStream.setNonStrokingColor(Color.YELLOW);
    contentStream.addRect(0, 0, 72, 72);
    contentStream.fill();
    contentStream.setNonStrokingColor(Color.BLACK);
    PDFont font = PDType1Font.HELVETICA;
    contentStream.beginText();
    contentStream.setFont(font, 18);
    contentStream.newLineAtOffset(2, 54);
    contentStream.showText("small");
    contentStream.newLineAtOffset(0, -48);
    contentStream.showText("page");
    contentStream.endText();
    contentStream.close();
    return document;
}
 

private float addLines(
        final float x, final float y,
        final float height,
        final List<Line> lines,
        final PDPageContentStream cs) throws IOException {
    cs.setFont(TEXT_FONT, TEXT_FONT_SIZE);
    float yLine = y + height - TEXT_LINE_HEIGHT;
    for (Line line : lines) {

        cs.setNonStrokingColor(line.color);
        cs.beginText();
        cs.newLineAtOffset(x + TEXT_X_PADDING, yLine);
        cs.showText(line.text);
        cs.endText();

        yLine -= TEXT_LINE_HEIGHT;
    }

    return yLine;
}
 

protected void drawText(String text, PDFont font, int fontSize, Color color, float x, float y, PDPageContentStream contentStream) throws IOException {
    // Rotate by 90 degrees counter clockwise
    final AffineTransform transform = AffineTransform.getTranslateInstance(x, y);
    transform.concatenate(AffineTransform.getRotateInstance(Math.PI * 0.5));
    transform.concatenate(AffineTransform.getTranslateInstance(-x, -y - fontSize));

    contentStream.moveTo(x, y);
    contentStream.beginText();

    // Do the transformation :)
    contentStream.setTextMatrix(transform);

    contentStream.setNonStrokingColor(color);
    contentStream.setFont(font, fontSize);
    contentStream.newLineAtOffset(x, y);
    contentStream.showText(text);
    contentStream.endText();
    contentStream.setCharacterSpacing(0);
}
 

/**
 * <a href="https://stackoverflow.com/questions/49426018/%e2%82%b9-indian-rupee-symbol-symbol-is-printing-as-question-mark-in-pdf-using-apa">
 * ₹ (Indian Rupee Symbol) symbol is printing as ? (question mark) in pdf using Apache PDFBOX
 * </a>
 * <p>
 * This test shows how to successfully show the Indian Rupee symbol
 * based on the OP's source frame and Tilman's proposed font.
 * </p>
 */
@Test
public void testIndianRupeeForVandanaSharma() throws IOException {
    PDDocument doc = new PDDocument();
    PDPage page = new PDPage();
    doc.addPage(page);
    PDPageContentStream cos=  new PDPageContentStream(doc, page);
    cos.beginText();
    String text = "Deposited Cash of ₹10,00,000/- or more in a Saving Bank Account";
    cos.newLineAtOffset(25, 700);
    cos.setFont(PDType0Font.load(doc, new File("c:/windows/fonts/arial.ttf")), 12);
    cos.showText(text);
    cos.endText();
    cos.close();
    doc.save(new File(RESULT_FOLDER, "IndianRupee.pdf"));
    doc.close();
}
 

/**
 * @see #testJoinSmallAndBig()
 */
PDDocument prepareBiggerPdf() throws IOException {
    PDDocument document = new PDDocument();
    PDPage page = new PDPage(PDRectangle.A5);
    document.addPage(page);
    PDPageContentStream contentStream = new PDPageContentStream(document, page);
    contentStream.setNonStrokingColor(Color.GREEN);
    contentStream.addRect(0, 0, PDRectangle.A5.getWidth(), PDRectangle.A5.getHeight());
    contentStream.fill();
    contentStream.setNonStrokingColor(Color.BLACK);
    PDFont font = PDType1Font.HELVETICA;
    contentStream.beginText();
    contentStream.setFont(font, 18);
    contentStream.newLineAtOffset(2, PDRectangle.A5.getHeight() - 24);
    contentStream.showText("This is the Bigger page");
    contentStream.newLineAtOffset(0, -48);
    contentStream.showText("BIGGER!");
    contentStream.endText();
    contentStream.close();
    return document;
}
 

/**
 * <a href="https://stackoverflow.com/questions/52054396/rotate-text-in-pdfbox-with-java">
 * Rotate text in pdfbox with java
 * </a>
 * <p>
 * This test shows how to show rotated text above a line.
 * </p>
 */
@Test
public void testRotatedTextOnLineForCedrickKapema() throws IOException {
    PDDocument doc = new PDDocument();
    PDPage page = new PDPage();
    doc.addPage(page);
    PDPageContentStream cos = new PDPageContentStream(doc, page);
    cos.transform(Matrix.getRotateInstance(-Math.PI / 6, 100, 650));
    cos.moveTo(0, 0);
    cos.lineTo(125, 0);
    cos.stroke();
    cos.beginText();
    String text = "0.72";
    cos.newLineAtOffset(50, 5);
    cos.setFont(PDType1Font.HELVETICA_BOLD, 12);
    cos.showText(text);
    cos.endText();
    cos.close();
    doc.save(new File(RESULT_FOLDER, "TextOnLine.pdf"));
    doc.close();
}
 

public void renderElement(GradeElement element, PDPageContentStream contentStream, PDPage page, float pageWidth, float pageHeight, float pageRealWidth, float pageRealHeight, float startX, float startY) throws IOException {

        if(!element.isVisible()) return;

        // COLOR
        Color color = element.getColor();
        contentStream.setNonStrokingColor(new java.awt.Color((float) color.getRed(), (float) color.getGreen(), (float) color.getBlue(), (float) color.getOpacity()));

        // FONT
        boolean bold = false;
        if (FontUtils.getFontWeight(element.getFont()) == FontWeight.BOLD) bold = true;
        boolean italic = false;
        if (FontUtils.getFontPosture(element.getFont()) == FontPosture.ITALIC) italic = true;
        InputStream fontFile = FontUtils.getFontFile(element.getFont().getFamily(), italic, bold);
        element.setFont(FontUtils.getFont(element.getFont().getFamily(), italic, bold, element.getFont().getSize() / 596.0 * pageWidth));

        contentStream.beginText();

        // CUSTOM STREAM

        Map.Entry<String, String> entry = Map.entry(element.getFont().getFamily(), FontUtils.getFontFileName(italic, bold));

        if(!fonts.containsKey(entry)){
            PDType0Font font = PDType0Font.load(doc, fontFile);
            contentStream.setFont(font, (float) element.getFont().getSize());
            fonts.put(entry, font);
        }else{
            contentStream.setFont(fonts.get(entry), (float) element.getFont().getSize());
        }

        float bottomMargin = pageRealHeight-pageHeight-startY;
        contentStream.newLineAtOffset(startX + element.getRealX() / Element.GRID_WIDTH * pageWidth, bottomMargin + pageRealHeight - element.getBaseLineY() - element.getRealY() / Element.GRID_HEIGHT * pageHeight);
        try{
            contentStream.showText(element.getText());
        }catch(IllegalArgumentException e){
            e.printStackTrace();
            System.err.println("Erreur : impossible d'écrire la note : \"" + element.getText() + "\" avec la police " + element.getFont().getFamily());
            System.err.println("Message d'erreur : " + e.getMessage());
        }
        contentStream.endText();

    }
 

/**
 * <a href="https://stackoverflow.com/questions/48902656/how-can-i-align-arrange-text-fields-into-two-column-layout-using-apache-pdfbox">
 * How can I Align/ Arrange text fields into two column layout using Apache PDFBox - java
 * </a>
 * <p>
 * This test shows how to align text in two columns.
 * </p>
 */
@Test
public void testArrangeTextForUser2967784() throws IOException {
    PDDocument document = new PDDocument();
    PDPage page = new PDPage();
    document.addPage(page);
    PDFont fontNormal = PDType1Font.HELVETICA;
    PDFont fontBold = PDType1Font.HELVETICA_BOLD;
    PDPageContentStream contentStream =new PDPageContentStream(document, page);
    contentStream.beginText();
    contentStream.newLineAtOffset(100, 600);
    contentStream.setFont(fontBold, 15);
    contentStream.showText("Name: ");
    contentStream.setFont(fontNormal, 15);
    contentStream.showText ("Rajeev");
    contentStream.newLineAtOffset(200, 00);
    contentStream.setFont(fontBold, 15);
    contentStream.showText("Address: " );
    contentStream.setFont(fontNormal, 15);
    contentStream.showText ("BNG");
    contentStream.newLineAtOffset(-200, -20);
    contentStream.setFont(fontBold, 15);
    contentStream.showText("State: " );
    contentStream.setFont(fontNormal, 15);
    contentStream.showText ("KAR");
    contentStream.newLineAtOffset(200, 00);
    contentStream.setFont(fontBold, 15);
    contentStream.showText("Country: " );
    contentStream.setFont(fontNormal, 15);
    contentStream.showText ("INDIA");
    contentStream.endText();
    contentStream.close();
    document.save(new File(RESULT_FOLDER, "arrangedTextForUser2967784.pdf"));
}
 

private void addCoverpage() throws IOException {
    float leading = 1.5f * FONT_SIZE_TITLE;
    PDDocument document = new PDDocument();
    PDPage page = new PDPage();
    document.addPage(page);
    FONT_STYLE_COVER = PDTrueTypeFont.loadTTF(document, MainApp.class.getResourceAsStream(FONT_MERRIWEATHER_BOLD));
    PDPageContentStream contentStream = new PDPageContentStream(document, page);
    contentStream.setNonStrokingColor(25, 81, 107);
    contentStream.fillRect(0, 0, page.getMediaBox().getWidth(), (page.getMediaBox().getHeight() / 2) - 10);
    contentStream.fillRect(0, (page.getMediaBox().getHeight() / 2) + 10, page.getMediaBox().getWidth(), (page.getMediaBox().getHeight() / 2) - 10);
    contentStream.setNonStrokingColor(248, 173, 50);
    contentStream.fillRect(0, (page.getMediaBox().getHeight() / 2) - 10, page.getMediaBox().getWidth(), 20);

    contentStream.beginText();
    contentStream.setNonStrokingColor(Color.WHITE);
    contentStream.setFont(FONT_STYLE_COVER, FONT_SIZE_AUTHOR);
    contentStream.newLineAtOffset(20, 20);
    contentStream.showText(authorContent);
    contentStream.setFont(FONT_STYLE_COVER, FONT_SIZE_TITLE);
    contentStream.newLineAtOffset((page.getMediaBox().getWidth() / 2) - 20, 600);
    List<String> lines = wrapText((page.getMediaBox().getWidth() / 2) - 20);
    for (String line : lines) {
        contentStream.showText(line);
        contentStream.newLineAtOffset(0, -leading);
    }
    contentStream.endText();

    contentStream.close();
    File temp = File.createTempFile("coverpage-zds", ".pdf");
    document.save(temp);
    document.close();

    PDFMergerUtility mergerUtility = new PDFMergerUtility();
    mergerUtility.addSource(temp);
    mergerUtility.addSource(destPdfPath);
    mergerUtility.setDestinationFileName(destPdfPath);
    mergerUtility.mergeDocuments();
}
 

/**
 * Generate the appearance for comb fields.
 * 
 * @param contents the content stream to write to
 * @param appearanceStream the appearance stream used
 * @param font the font to be used
 * @param fontSize the font size to be used
 * @throws IOException
 */
private void insertGeneratedCombAppearance(PDPageContentStream contents, PDAppearanceStream appearanceStream,
        PDFont font, float fontSize) throws IOException
{
    
    // TODO:    Currently the quadding is not taken into account
    //          so the comb is always filled from left to right.
    
    int maxLen = ((PDTextField) field).getMaxLen();
    int numChars = Math.min(value.length(), maxLen);
    
    PDRectangle paddingEdge = applyPadding(appearanceStream.getBBox(), 1);
    
    float combWidth = appearanceStream.getBBox().getWidth() / maxLen;
    float ascentAtFontSize = font.getFontDescriptor().getAscent() / FONTSCALE * fontSize;
    float baselineOffset = paddingEdge.getLowerLeftY() +  
            (appearanceStream.getBBox().getHeight() - ascentAtFontSize)/2;
    
    float prevCharWidth = 0f;
    
    float xOffset = combWidth / 2;

    for (int i = 0; i < numChars; i++) 
    {
        String combString = value.substring(i, i+1);
        float currCharWidth = font.getStringWidth(combString) / FONTSCALE * fontSize/2;
        
        xOffset = xOffset + prevCharWidth/2 - currCharWidth/2;
        
        contents.newLineAtOffset(xOffset, baselineOffset);
        contents.showText(combString);
        
        baselineOffset = 0;
        prevCharWidth = currCharWidth;
        xOffset = combWidth;
    }
}
 

/**
 * Footer is filled with varaibles selected in Grafana by user
 * 
 * @param doc
 * @param title
 * @param variables
 * @return doc
 * @throws IOException
 */
private PDDocument footer(PDDocument doc, String title, String variables) throws IOException {
	try{
		PDPageTree pages = doc.getPages();
		for(PDPage p : pages){
			PDPageContentStream contentStream = new PDPageContentStream(doc, p, AppendMode.APPEND, false);
			contentStream.beginText();
			contentStream.newLineAtOffset(220, 780);
			contentStream.setFont(PDType1Font.HELVETICA, 11);
			contentStream.showText("OneDevOps Insights – "+title);
			contentStream.endText();
			if(!variables.equals("") && variables != null){
				contentStream.beginText();
				contentStream.newLineAtOffset(2, 17);
				contentStream.setFont(PDType1Font.HELVETICA, 9);
				contentStream.showText("This Report is generated based on the user selected values as below.");
				contentStream.endText();
				contentStream.beginText();
				contentStream.newLineAtOffset(2, 5);
				contentStream.setFont(PDType1Font.HELVETICA, 7);
				contentStream.showText(variables);
				contentStream.endText();
			}
			contentStream.close();
		}
	}catch(Exception e){
		Log.error("Error, Failed in Footer.. ", e.getMessage());
	}
	return doc;
}
 

public static void drawText(PDPageContentStream contentStream, PositionedStyledText styledText) throws IOException {
    contentStream.beginText();
    contentStream.setNonStrokingColor(styledText.getColor());
    contentStream.setFont(styledText.getFont(), styledText.getFontSize());
    contentStream.newLineAtOffset(styledText.getX(), styledText.getY());
    contentStream.showText(styledText.getText());
    contentStream.endText();
    contentStream.setCharacterSpacing(0);
}
 

public static void main(String[] args) throws IOException {
	// Create a document and add a page to it
	PDDocument document = new PDDocument();
	PDPage page = new PDPage();
	document.addPage( page );

	// Create a new font object selecting one of the PDF base fonts
	PDFont font = PDType1Font.HELVETICA_BOLD;

	// Start a new content stream which will "hold" the to be created content
	PDPageContentStream contentStream = new PDPageContentStream(document, page);

	// Define a text content stream using the selected font, moving the cursor and drawing the text "Hello World"
	contentStream.beginText();
	contentStream.setFont( font, 12 );
	contentStream.newLineAtOffset( 100, 700 );
	contentStream.showText( "Hello World" );
	contentStream.endText();

	// Make sure that the content stream is closed:
	contentStream.close();

	// Save the results and ensure that the document is properly closed:
	document.save( "/home/lili/data/Hello World.pdf");
	document.close();

}
 

/**
 * <a href="http://stackoverflow.com/questions/37601092/pdfbox-identify-specific-pages-and-functionalities-recommendations">
 * PDFBox identify specific pages and functionalities recommendations
 * </a>
 * 
 * <p>
 * This test shows how to add an empty signature field with a custom appearance
 * to an existing PDF.
 * </p>
 */
@Test
public void testAddEmptySignatureField() throws IOException
{
    try (   InputStream sourceStream = getClass().getResourceAsStream("test.pdf");
            OutputStream output = new FileOutputStream(new File(RESULT_FOLDER, "test-with-empty-sig-field.pdf")))
    {
        PDFont font = PDType1Font.HELVETICA;
        PDResources resources = new PDResources();
        resources.put(COSName.getPDFName("Helv"), font);

        PDDocument document = Loader.loadPDF(sourceStream);
        PDAcroForm acroForm = new PDAcroForm(document);
        acroForm.setDefaultResources(resources);
        document.getDocumentCatalog().setAcroForm(acroForm);

        PDRectangle rect = new PDRectangle(50, 750, 200, 50);

        PDAppearanceDictionary appearanceDictionary = new PDAppearanceDictionary();
        PDAppearanceStream appearanceStream = new PDAppearanceStream(document);
        appearanceStream.setBBox(rect.createRetranslatedRectangle());
        appearanceStream.setResources(resources);
        appearanceDictionary.setNormalAppearance(appearanceStream);
        PDPageContentStream contentStream = new PDPageContentStream(document, appearanceStream);
        contentStream.setStrokingColor(Color.BLACK);
        contentStream.setNonStrokingColor(Color.LIGHT_GRAY);
        contentStream.setLineWidth(2);
        contentStream.addRect(0, 0, rect.getWidth(), rect.getHeight());
        contentStream.fill();
        contentStream.moveTo(1 * rect.getHeight() / 4, 1 * rect.getHeight() / 4);
        contentStream.lineTo(2 * rect.getHeight() / 4, 3 * rect.getHeight() / 4);
        contentStream.moveTo(1 * rect.getHeight() / 4, 3 * rect.getHeight() / 4);
        contentStream.lineTo(2 * rect.getHeight() / 4, 1 * rect.getHeight() / 4);
        contentStream.moveTo(3 * rect.getHeight() / 4, 1 * rect.getHeight() / 4);
        contentStream.lineTo(rect.getWidth() - rect.getHeight() / 4, 1 * rect.getHeight() / 4);
        contentStream.stroke();
        contentStream.setNonStrokingColor(Color.DARK_GRAY);
        contentStream.beginText();
        contentStream.setFont(font, rect.getHeight() / 5);
        contentStream.newLineAtOffset(3 * rect.getHeight() / 4, -font.getBoundingBox().getLowerLeftY() * rect.getHeight() / 5000);
        contentStream.showText("Customer");
        contentStream.endText();
        contentStream.close();

        PDSignatureField signatureField = new PDSignatureField(acroForm);
        signatureField.setPartialName("SignatureField");
        PDPage page = document.getPage(0);

        PDAnnotationWidget widget = signatureField.getWidgets().get(0);
        widget.setAppearance(appearanceDictionary);
        widget.setRectangle(rect);
        widget.setPage(page);

        page.getAnnotations().add(widget);
        acroForm.getFields().add(signatureField);

        document.save(output);
        document.close();
    }
}
 

private void insertGeneratedListboxAppearance(PDPageContentStream contents, PDAppearanceStream appearanceStream,
        PDRectangle contentRect, PDFont font, float fontSize) throws IOException
{
    contents.setNonStrokingColor(0);
    
    int q = field.getQ();

    if (q == PDVariableText.QUADDING_CENTERED || q == PDVariableText.QUADDING_RIGHT)
    {
        float fieldWidth = appearanceStream.getBBox().getWidth();
        float stringWidth = (font.getStringWidth(value) / FONTSCALE) * fontSize;
        float adjustAmount = fieldWidth - stringWidth - 4;

        if (q == PDVariableText.QUADDING_CENTERED)
        {
            adjustAmount = adjustAmount / 2.0f;
        }

        contents.newLineAtOffset(adjustAmount, 0);
    }
    else if (q != PDVariableText.QUADDING_LEFT)
    {
        throw new IOException("Error: Unknown justification value:" + q);
    }

    List<String> options = ((PDListBox) field).getOptionsDisplayValues();
    int numOptions = options.size();

    float yTextPos = contentRect.getUpperRightY();

    int topIndex = ((PDListBox) field).getTopIndex();
    
    for (int i = topIndex; i < numOptions; i++)
    {
       
        if (i == topIndex)
        {
            yTextPos = yTextPos - font.getFontDescriptor().getAscent() / FONTSCALE * fontSize;
        }
        else
        {
            yTextPos = yTextPos - font.getBoundingBox().getHeight() / FONTSCALE * fontSize;
            contents.beginText();
        }

        contents.newLineAtOffset(contentRect.getLowerLeftX(), yTextPos);
        contents.showText(options.get(i));

        if (i != (numOptions - 1))
        {
            contents.endText();
        }
    }
}
 

/**
 * <a href="https://stackoverflow.com/questions/44503236/how-to-write-text-draw-a-line-and-then-again-write-text-in-a-pdf-file-using-pdf">
 * How to write text, draw a line and then again write text in a pdf file using PDFBox
 * </a>
 * <p>
 * This test shows how to draw tetx, then graphics, then again text.
 * </p>
 */
@Test
public void testDrawTextLineText() throws IOException
{
    PDFont font = PDType1Font.HELVETICA;
    float fontSize = 14;
    float fontHeight = fontSize;
    float leading = 20;
    SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy.MM.dd");
    Date date = new Date();

    PDDocument doc = new PDDocument();
    PDPage page = new PDPage();
    doc.addPage(page);

    PDPageContentStream contentStream = new PDPageContentStream(doc, page);
    contentStream.setFont(font, fontSize);

    float yCordinate = page.getCropBox().getUpperRightY() - 30;
    float startX = page.getCropBox().getLowerLeftX() + 30;
    float endX = page.getCropBox().getUpperRightX() - 30;

    contentStream.beginText();
    contentStream.newLineAtOffset(startX, yCordinate);
    contentStream.showText("Entry Form � Header");
    yCordinate -= fontHeight;  //This line is to track the yCordinate
    contentStream.newLineAtOffset(0, -leading);
    yCordinate -= leading;
    contentStream.showText("Date Generated: " + dateFormat.format(date));
    yCordinate -= fontHeight;
    contentStream.endText(); // End of text mode

    contentStream.moveTo(startX, yCordinate);
    contentStream.lineTo(endX, yCordinate);
    contentStream.stroke();
    yCordinate -= leading;

    contentStream.beginText();
    contentStream.newLineAtOffset(startX, yCordinate);
    contentStream.showText("Name: XXXXX");
    contentStream.endText();

    contentStream.close();
    doc.save(new File(RESULT_FOLDER, "textLineText.pdf"));
}
 

/**
 * Draws a custom text with the specified parameters
 * @param cs
 *		{@link PDPageContentStream} current stream
 * @param dimensionAndPosition
 *		{@link SignatureFieldDimensionAndPosition} size and position to place the text to
 * @param textParameters
 *		{@link SignatureImageTextParameters} text to place on the signature field
 * @throws IOException
 *		in case of error
 */
private void setText(PDPageContentStream cs, SignatureFieldDimensionAndPosition dimensionAndPosition, 
		SignatureImageParameters parameters) throws IOException {
	SignatureImageTextParameters textParameters = parameters.getTextParameters();
   	if (textParameters != null && Utils.isStringNotEmpty(textParameters.getText())) {
   		setTextBackground(cs, textParameters, dimensionAndPosition);
   		DSSFont dssFont = textParameters.getFont();
           float fontSize = dssFont.getSize();
           fontSize *= ImageUtils.getScaleFactor(parameters.getZoom());
           cs.beginText();
           cs.setFont(pdFont, fontSize);
           cs.setNonStrokingColor(textParameters.getTextColor());
           setAlphaChannel(cs, textParameters.getTextColor());
           
           PdfBoxFontMetrics pdfBoxFontMetrics = new PdfBoxFontMetrics(pdFont);
           
           String[] strings = pdfBoxFontMetrics.getLines(textParameters.getText());
           
           float properSize = CommonDrawerUtils.computeProperSize(textParameters.getFont().getSize(), parameters.getDpi());
           
           float fontHeight = pdfBoxFontMetrics.getHeight(textParameters.getText(), properSize);
           cs.setLeading(textSizeWithDpi(fontHeight, dimensionAndPosition.getyDpi()));
           
           cs.newLineAtOffset(dimensionAndPosition.getTextX(),
           		// align vertical position
           		dimensionAndPosition.getTextHeight() + dimensionAndPosition.getTextY() - fontSize);

           float previousOffset = 0;
           for (String str : strings) {
               float stringWidth = pdfBoxFontMetrics.getWidth(str, fontSize);
               float offsetX = 0;
               switch (textParameters.getSignerTextHorizontalAlignment()) {
				case RIGHT:
					offsetX = dimensionAndPosition.getTextWidth() - stringWidth - 
							textSizeWithDpi(textParameters.getPadding()*2, dimensionAndPosition.getxDpi()) - previousOffset;
					break;
				case CENTER:
					offsetX = (dimensionAndPosition.getTextWidth() - stringWidth) / 2 - 
							textSizeWithDpi(textParameters.getPadding(), dimensionAndPosition.getxDpi()) - previousOffset;
					break;
				default:
					break;
			}
               previousOffset += offsetX;
			cs.newLineAtOffset(offsetX, 0); // relative offset
               cs.showText(str);
               cs.newLine();
           }
           cs.endText();
           cleanTransparency(cs);
   	}
}
 

/**
 * Print the results to PDF.
 * @param contentStream
 * @param fontSize
 * @param pdfFont
 * @param leading
 * @param startX
 * @param startY
 * @param lines
 * @throws IOException
 */
public static void printResult(PDPageContentStream contentStream, float fontSize,
                               PDFont pdfFont, float leading, float startX, float startY, List<String> lines)
        throws IOException {
    for (String line : lines) {
        contentStream.showText(line);
        contentStream.newLineAtOffset(0, -leading);
    }
}