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

/**
 * @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;
}
 

/**
 * @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;
}
 

public static void drawRectangle(PDPageContentStream contentStream, PositionedRectangle rectangle)
        throws IOException {
    contentStream.setNonStrokingColor(rectangle.getColor());

    contentStream.addRect(rectangle.getX(), rectangle.getY(), rectangle.getWidth(), rectangle.getHeight());
    contentStream.fill();

    // Reset NonStrokingColor to default value
    contentStream.setNonStrokingColor(Color.BLACK);
}
 

private static void drawRect(PDPageContentStream contentStream, Color color, Rectangle rect, boolean fill) throws IOException {
	contentStream.addRect(rect.x, rect.y, rect.width, rect.height);
	if (fill) {
		contentStream.setNonStrokingColor(color);
		contentStream.fill();
	} else {
		contentStream.setStrokingColor(color);
		contentStream.stroke();
	}
}
 

private void insertGeneratedListboxSelectionHighlight(PDPageContentStream contents, PDAppearanceStream appearanceStream,
        PDFont font, float fontSize) throws IOException
{
    List<Integer> indexEntries = ((PDListBox) field).getSelectedOptionsIndex();
    List<String> values = ((PDListBox) field).getValue();
    List<String> options = ((PDListBox) field).getOptionsExportValues();
    
    if (!values.isEmpty() && !options.isEmpty() && indexEntries.isEmpty())
    {
        // create indexEntries from options
        indexEntries = new ArrayList<Integer>();
        for (String v : values)
        {
            indexEntries.add(options.indexOf(v));
        }
    }

    // The first entry which shall be presented might be adjusted by the optional TI key
    // If this entry is present the first entry to be displayed is the keys value otherwise
    // display starts with the first entry in Opt.
    int topIndex = ((PDListBox) field).getTopIndex();
    
    float highlightBoxHeight = font.getBoundingBox().getHeight() * fontSize / FONTSCALE;       

    // the padding area 
    PDRectangle paddingEdge = applyPadding(appearanceStream.getBBox(), 1);

    for (int selectedIndex : indexEntries)
    {
        contents.setNonStrokingColor(HIGHLIGHT_COLOR[0], HIGHLIGHT_COLOR[1], HIGHLIGHT_COLOR[2]);

        contents.addRect(paddingEdge.getLowerLeftX(),
                paddingEdge.getUpperRightY() - highlightBoxHeight * (selectedIndex - topIndex + 1) + 2,
                paddingEdge.getWidth(),
                highlightBoxHeight);
        contents.fill();
    }
    contents.setNonStrokingColor(0);
}
 

private void setBackground(PDPageContentStream cs, Color color, PDRectangle rect) throws IOException {
	if (color != null) {
           setAlphaChannel(cs, color);
           cs.setNonStrokingColor(color);
           // fill a whole box with the background color
           cs.addRect(rect.getLowerLeftX(), rect.getLowerLeftY(), rect.getWidth(), rect.getHeight());
           cs.fill();
           cleanTransparency(cs);
   	}
}
 

private void addBox(
        final float x, final float y, final float height,
        final PDPageContentStream cs) throws IOException {
    cs.setLineWidth(BOX_LINE_WIDTH);
    cs.setStrokingColor(Color.DARK_GRAY);
    cs.addRect(
            x - (float) BOX_LINE_WIDTH,
            y - (float) BOX_LINE_WIDTH,
            BOX_WIDTH + 2* (float) BOX_LINE_WIDTH,
            height + 2* (float) BOX_LINE_WIDTH);
    cs.stroke();
    cs.setNonStrokingColor(BOX_FILL);
    cs.addRect(x, y, BOX_WIDTH, height);
    cs.fill();
}
 

/**
 * <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();
    }
}
 

/**
 * <a href="https://stackoverflow.com/questions/46080131/text-coordinates-when-stripping-from-pdfbox">
 * Text coordinates when stripping from PDFBox
 * </a>
 * <p>
 * This test applies the OP's code to an arbitrary PDF file and it did work properly
 * (well, it did only cover the text from the baseline upwards but that is to be expected).
 * </p>
 */
@Test
public void testCoverTextByRectanglesInput() throws IOException {
    try (   InputStream resource = getClass().getResourceAsStream("input.pdf")  ) {
        PDDocument doc = Loader.loadPDF(resource);

        myStripper stripper = new myStripper();

        stripper.setStartPage(1); // fix it to first page just to test it
        stripper.setEndPage(1);
        stripper.getText(doc);

        TextLine line = stripper.lines.get(1); // the line i want to paint on

        float minx = -1;
        float maxx = -1;

        for (TextPosition pos: line.textPositions)
        {
            if (pos == null)
                continue;

            if (minx == -1 || pos.getTextMatrix().getTranslateX() < minx) {
                minx = pos.getTextMatrix().getTranslateX();
            }
            if (maxx == -1 || pos.getTextMatrix().getTranslateX() > maxx) {
                maxx = pos.getTextMatrix().getTranslateX();
            }
        }

        TextPosition firstPosition = line.textPositions.get(0);
        TextPosition lastPosition = line.textPositions.get(line.textPositions.size() - 1);

        float x = minx;
        float y = firstPosition.getTextMatrix().getTranslateY();
        float w = (maxx - minx) + lastPosition.getWidth();
        float h = lastPosition.getHeightDir();

        PDPageContentStream contentStream = new PDPageContentStream(doc, doc.getPage(0), PDPageContentStream.AppendMode.APPEND, false);

        contentStream.setNonStrokingColor(Color.RED);
        contentStream.addRect(x, y, w, h);
        contentStream.fill();
        contentStream.close();

        File fileout = new File(RESULT_FOLDER, "input-withRectangles.pdf");
        doc.save(fileout);
        doc.close();
    }
}
 

/**
 * <a href="https://stackoverflow.com/questions/46080131/text-coordinates-when-stripping-from-pdfbox">
 * Text coordinates when stripping from PDFBox
 * </a>
 * <br/>
 * <a href="https://download-a.akamaihd.net/files/media_mwb/b7/mwb_I_201711.pdf">
 * mwb_I_201711.pdf
 * </a>
 * <p>
 * This test applies the OP's code to his example PDF file and indeed, there is an offset!
 * This is due to the <code>LegacyPDFStreamEngine</code> method <code>showGlyph</code>
 * which manipulates the text rendering matrix to make the lower left corner of the
 * crop box the origin. In the current version of this test, that offset is corrected,
 * see below. 
 * </p>
 */
@Test
public void testCoverTextByRectanglesMwbI201711() throws IOException {
    try (   InputStream resource = getClass().getResourceAsStream("mwb_I_201711.pdf")  ) {
        PDDocument doc = Loader.loadPDF(resource);

        myStripper stripper = new myStripper();

        stripper.setStartPage(1); // fix it to first page just to test it
        stripper.setEndPage(1);
        stripper.getText(doc);

        TextLine line = stripper.lines.get(1); // the line i want to paint on

        float minx = -1;
        float maxx = -1;

        for (TextPosition pos: line.textPositions)
        {
            if (pos == null)
                continue;

            if (minx == -1 || pos.getTextMatrix().getTranslateX() < minx) {
                minx = pos.getTextMatrix().getTranslateX();
            }
            if (maxx == -1 || pos.getTextMatrix().getTranslateX() > maxx) {
                maxx = pos.getTextMatrix().getTranslateX();
            }
        }

        TextPosition firstPosition = line.textPositions.get(0);
        TextPosition lastPosition = line.textPositions.get(line.textPositions.size() - 1);

        // corrected x and y
        PDRectangle cropBox = doc.getPage(0).getCropBox();

        float x = minx + cropBox.getLowerLeftX();
        float y = firstPosition.getTextMatrix().getTranslateY() + cropBox.getLowerLeftY();
        float w = (maxx - minx) + lastPosition.getWidth();
        float h = lastPosition.getHeightDir();

        PDPageContentStream contentStream = new PDPageContentStream(doc, doc.getPage(0), PDPageContentStream.AppendMode.APPEND, false, true);

        contentStream.setNonStrokingColor(Color.RED);
        contentStream.addRect(x, y, w, h);
        contentStream.fill();
        contentStream.close();

        File fileout = new File(RESULT_FOLDER, "mwb_I_201711-withRectangles.pdf");
        doc.save(fileout);
        doc.close();
    }
}