import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
private int numberOfVisibleSignatureFieldsOnSignaturePage(AcroFields readerFields, ArrayList<String> signatureFieldsNames, int signaturePage) {
	int count = 0;
	for (String signatureFieldName : signatureFieldsNames) {
		Item i = readerFields.getFieldItem(signatureFieldName);
		int page = i.getPage(0);
		if(page == signaturePage){
			PdfDictionary pdct = i.getMerged(0); 
			PdfNumber flags = pdct.getAsNumber(PdfName.F); 
			if ((flags.intValue() & PdfAnnotation.FLAGS_HIDDEN) == 0) {
				count = count + 1;
			} 
		}
	}
	return count;
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/43205385/trying-to-draw-an-ellipse-annotation-and-the-border-on-the-edges-goes-thin-and-t">
 * Trying to draw an ellipse annotation and the border on the edges goes thin and thik when i try to roatate pdf itext5
 * </a>
 * <p>
 * This test creates an ellipse annotation without appearance on a page with rotation.
 * The ellipse form looks ok but it is moved to the right of the actual appearance rectangle when viewed in Adobe Reader.
 * This is caused by iText creating a non-standard rectangle, the lower left not being the lower left etc.
 * </p>
 * @see #testCreateEllipse()
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseAppearanceOnRotated()
 * @see #testCreateCorrectEllipseAppearanceOnRotated()
 */
@Test
public void testCreateEllipseOnRotated() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/merge/testA4.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "testA4-rotated-ellipse.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        reader.getPageN(1).put(PdfName.ROTATE, new PdfNumber(90));

        PdfStamper stamper = new PdfStamper(reader, outputStream);

        Rectangle rect = new Rectangle(202 + 6f, 300, 200 + 100, 300 + 150);

        PdfAnnotation annotation = PdfAnnotation.createSquareCircle(stamper.getWriter(), rect, null, false);
        annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
        annotation.setColor(BaseColor.RED);
        annotation.setBorderStyle(new PdfBorderDictionary(3.5f, PdfBorderDictionary.STYLE_SOLID));

        stamper.addAnnotation(annotation, 1);

        stamper.close();
        reader.close();
    }
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
void updateTransparencyFrom(PdfName gsName)
{
    PdfDictionary extGState = getGraphicsStateDictionary(gsName);
    if (extGState != null)
    {
        PdfNumber number = extGState.getAsNumber(PdfName.ca);
        if (number != null)
            nonStrokingAlpha = number.floatValue();
        number = extGState.getAsNumber(PdfName.CA);
        if (number != null)
            strokingAlpha = number.floatValue();
    }
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/37275267/how-to-make-pdf-annotation-as-read-only-using-itext">
 * how to make pdf annotation as read only using itext?
 * </a>
 * <br/>
 * test-annotated.pdf <i>simple PDF with sticky note</i>
 * 
 * <p>
 * This test shows how to set the read-only flags of all annotations of a document.
 * </p>
 */
@Test
public void testMarkAnnotationsReadOnly() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("test-annotated.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "test-annotated-ro.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);

        for (int page = 1; page <= reader.getNumberOfPages(); page++)
        {
            PdfDictionary pageDictionary = reader.getPageN(page);
            PdfArray annotationArray = pageDictionary.getAsArray(PdfName.ANNOTS);
            if (annotationArray == null)
                continue;
            for (PdfObject object : annotationArray)
            {
                PdfObject directObject = PdfReader.getPdfObject(object);
                if (directObject instanceof PdfDictionary)
                {
                    PdfDictionary annotationDictionary = (PdfDictionary) directObject;
                    PdfNumber flagsNumber = annotationDictionary.getAsNumber(PdfName.F);
                    int flags = flagsNumber != null ? flagsNumber.intValue() : 0;
                    flags |= PdfAnnotation.FLAGS_READONLY;
                    annotationDictionary.put(PdfName.F, new PdfNumber(flags));
                }
            }
        }

        stamper.close();
    }
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/43205385/trying-to-draw-an-ellipse-annotation-and-the-border-on-the-edges-goes-thin-and-t">
 * Trying to draw an ellipse annotation and the border on the edges goes thin and thik when i try to roatate pdf itext5
 * </a>
 * <p>
 * This test creates an ellipse annotation with appearance on a page with rotation.
 * The ellipse position looks ok but it is deformed.
 * This is caused by iText rotating the annotation rectangle but not (how could it?) the appearance rectangle.
 * </p>
 * @see #testCreateEllipse()
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseOnRotated()
 * @see #testCreateCorrectEllipseAppearanceOnRotated()
 */
@Test
public void testCreateEllipseAppearanceOnRotated() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/merge/testA4.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "testA4-rotated-ellipse-appearance.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        reader.getPageN(1).put(PdfName.ROTATE, new PdfNumber(90));

        PdfStamper stamper = new PdfStamper(reader, outputStream);

        Rectangle rect = new Rectangle(202 + 6f, 300, 200 + 100, 300 + 150);

        PdfAnnotation annotation = PdfAnnotation.createSquareCircle(stamper.getWriter(), rect, null, false);
        annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
        annotation.setColor(BaseColor.RED);
        annotation.setBorderStyle(new PdfBorderDictionary(3.5f, PdfBorderDictionary.STYLE_SOLID));

        PdfContentByte cb = stamper.getOverContent(1);
        PdfAppearance app = cb.createAppearance(rect.getWidth(), rect.getHeight());
        app.setColorStroke(BaseColor.RED);
        app.setLineWidth(3.5);
        app.ellipse( 1.5,  1.5, rect.getWidth() - 1.5, rect.getHeight() - 1.5);
        app.stroke();
        annotation.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, app);

        stamper.addAnnotation(annotation, 1);

        stamper.close();
        reader.close();
    }
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/43205385/trying-to-draw-an-ellipse-annotation-and-the-border-on-the-edges-goes-thin-and-t">
 * Trying to draw an ellipse annotation and the border on the edges goes thin and thik when i try to roatate pdf itext5
 * </a>
 * <p>
 * This test creates an ellipse annotation with appearance with switched dimensions on a page with rotation.
 * Everything looks ok.
 * </p>
 * @see #testCreateEllipse()
 * @see #testCreateEllipseAppearance()
 * @see #testCreateEllipseOnRotated()
 * @see #testCreateEllipseAppearanceOnRotated()
 */
@Test
public void testCreateCorrectEllipseAppearanceOnRotated() throws IOException, DocumentException
{
    try (   InputStream resourceStream = getClass().getResourceAsStream("/mkl/testarea/itext5/merge/testA4.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "testA4-rotated-ellipse-appearance-correct.pdf"))    )
    {
        PdfReader reader = new PdfReader(resourceStream);
        reader.getPageN(1).put(PdfName.ROTATE, new PdfNumber(90));

        PdfStamper stamper = new PdfStamper(reader, outputStream);

        Rectangle rect = new Rectangle(202 + 6f, 300, 200 + 100, 300 + 150);

        PdfAnnotation annotation = PdfAnnotation.createSquareCircle(stamper.getWriter(), rect, null, false);
        annotation.setFlags(PdfAnnotation.FLAGS_PRINT);
        annotation.setColor(BaseColor.RED);
        annotation.setBorderStyle(new PdfBorderDictionary(3.5f, PdfBorderDictionary.STYLE_SOLID));

        PdfContentByte cb = stamper.getOverContent(1);
        PdfAppearance app = cb.createAppearance(rect.getHeight(), rect.getWidth());
        app.setColorStroke(BaseColor.RED);
        app.setLineWidth(3.5);
        app.ellipse( 1.5,  1.5, rect.getHeight() - 1.5, rect.getWidth() - 1.5);
        app.stroke();
        annotation.setAppearance(PdfAnnotation.APPEARANCE_NORMAL, app);

        stamper.addAnnotation(annotation, 1);

        stamper.close();
        reader.close();
    }
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
static void collectFolders(Map<Integer, File> collection, PdfDictionary folder, File baseDir)
{
    PdfString name = folder.getAsString(PdfName.NAME);
    File folderDir = new File(baseDir, name.toString());
    folderDir.mkdirs();
    PdfNumber id = folder.getAsNumber(PdfName.ID);
    collection.put(id.intValue(), folderDir);

    PdfDictionary next = folder.getAsDict(PdfName.NEXT);
    if (next != null)
        collectFolders(collection, next, baseDir);
    PdfDictionary child = folder.getAsDict(CHILD);
    if (child != null)
        collectFolders(collection, child, folderDir);
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
private static PdfArray createScaledBoxArray(final Rectangle scaledBox) {
	PdfArray scaleBoxArray = new PdfArray();
	scaleBoxArray.add(new PdfNumber(scaledBox.getLeft()));
	scaleBoxArray.add(new PdfNumber(scaledBox.getBottom()));
	scaleBoxArray.add(new PdfNumber(scaledBox.getRight()));
	scaleBoxArray.add(new PdfNumber(scaledBox.getTop()));
	return scaleBoxArray;
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
/**
 * <a href="http://stackoverflow.com/questions/28911509/how-to-retain-page-labels-when-concatenating-an-existing-pdf-with-a-pdf-created">
 * How to retain page labels when concatenating an existing pdf with a pdf created from scratch?
 * </a>
 * <p>
 * A proposal how to implement the task using a {@link PdfStamper}.
 */
@Test
public void testInsertTitlePage() throws IOException, DocumentException
{
    try (   InputStream documentStream = getClass().getResourceAsStream("Labels.pdf");
            InputStream titleStream = getClass().getResourceAsStream("Cover.pdf");
            OutputStream outputStream = new FileOutputStream(new File(RESULT_FOLDER, "labels-with-cover-page.pdf"))    )
    {
        PdfReader titleReader = new PdfReader(titleStream);
        PdfReader reader = new PdfReader(documentStream);
        PdfStamper stamper = new PdfStamper(reader, outputStream);

        PdfImportedPage page = stamper.getImportedPage(titleReader, 1);
        stamper.insertPage(1, titleReader.getPageSize(1));
        PdfContentByte content = stamper.getUnderContent(1);
        content.addTemplate(page, 0, 0);
        copyLinks(stamper, 1, titleReader, 1);

        PdfDictionary root = reader.getCatalog();
        PdfDictionary labels = root.getAsDict(PdfName.PAGELABELS);
        if (labels != null)
        {
            PdfArray newNums = new PdfArray();
            
            newNums.add(new PdfNumber(0));
            PdfDictionary coverDict = new PdfDictionary();
            coverDict.put(PdfName.P, new PdfString("Cover Page"));
            newNums.add(coverDict);

            PdfArray nums = labels.getAsArray(PdfName.NUMS);
            if (nums != null)
            {
                for (int i = 0; i < nums.size() - 1; )
                {
                    int n = nums.getAsNumber(i++).intValue();
                    newNums.add(new PdfNumber(n+1));
                    newNums.add(nums.getPdfObject(i++));
                }
            }

            labels.put(PdfName.NUMS, newNums);
            stamper.markUsed(labels);
        }

        stamper.close();
    }
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
@Override
protected void configurePDFWriter(PdfWriter writer) throws IOException {
    double leftMap = pageFormat.getPageLeft();
    double bottomMap = pageFormat.getPageBottom();
    
    PdfDictionary lgiDict = new PdfDictionary(new PdfName("LGIDict"));
    lgiDict.put(new PdfName("Version"), new PdfNumber("2.1"));
    
    /*
    // Registration (optional): not interpreted by GDAL
    
    double rightMap = pageFormat.getPageRight();
    double topMap = pageFormat.getPageTop();
    
    float leftPage = xToPagePx((float) leftMap);
    float bottomPage = yToPagePx((float) bottomMap);
    float rightPage = xToPagePx((float) rightMap);
    float topPage = yToPagePx((float) topMap);
    
    PdfArray lowerLeftPoint = new PdfArray();
    lowerLeftPoint.add(new PdfString(Double.toString(leftPage)));
    lowerLeftPoint.add(new PdfString(Double.toString(bottomPage)));
    lowerLeftPoint.add(new PdfString(Double.toString(leftMap)));
    lowerLeftPoint.add(new PdfString(Double.toString(bottomMap)));

    PdfArray upperRightPoint = new PdfArray();
    upperRightPoint.add(new PdfString(Double.toString(rightPage)));
    upperRightPoint.add(new PdfString(Double.toString(topPage)));
    upperRightPoint.add(new PdfString(Double.toString(rightMap)));
    upperRightPoint.add(new PdfString(Double.toString(topMap)));

    PdfArray registration = new PdfArray();
    registration.add(lowerLeftPoint);
    registration.add(upperRightPoint);

    lgiDict.put(new PdfName("Registration"), registration);
    */
    
    // FIXME usage of PageFormat.MM2PX
    double scale = pageFormat.getPageWidthWorldCoordinates() / pageFormat.getPageWidth() / PageFormat.MM2PX;
    PdfArray ctmArray = new PdfArray();
    ctmArray.add(new PdfString(Double.toString(scale)));
    ctmArray.add(new PdfString("0"));
    ctmArray.add(new PdfString("0"));
    ctmArray.add(new PdfString(Double.toString(scale)));
    ctmArray.add(new PdfString(Double.toString(leftMap)));
    ctmArray.add(new PdfString(Double.toString(bottomMap)));
    lgiDict.put(new PdfName("CTM"), ctmArray);
    
    // Projection
    PdfDictionary projectionDict = new PdfDictionary(new PdfName("Projection"));
    projectionDict.put(new PdfName("ProjectionType"), new PdfString("NONE"));
    lgiDict.put(new PdfName("Projection"), projectionDict);
    
    /*
    // Neatline (optional)
    PdfArray neatlinePoints = new PdfArray();
    neatlinePoints.add(new PdfString(Double.toString(leftPage)));
    neatlinePoints.add(new PdfString(Double.toString(bottomPage)));
    neatlinePoints.add(new PdfString(Double.toString(rightPage)));
    neatlinePoints.add(new PdfString(Double.toString(topPage)));
    lgiDict.put(new PdfName("Neatline"), neatlinePoints);
    */
    
    writer.addPageDictEntry(new PdfName("LGIDict"), lgiDict);
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
private static void cropMultipliedFile(File source, CropJob cropJob) throws FileNotFoundException, DocumentException,
		IOException {

	PdfReader reader = new PdfReader(source.getAbsolutePath());
	PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(cropJob.getDestinationFile()));
	stamper.setMoreInfo(cropJob.getSourceMetaInfo());

	PdfDictionary pageDict;
	int newPageNumber = 1;
	for (int origPageNumber = 1; origPageNumber <= cropJob.getSourcePageCount(); origPageNumber++) {
		SingleCluster cluster = cropJob.getClusterCollection().getSingleCluster(origPageNumber);

		// if no crop was selected do nothing
		if (cluster.getRatiosList().size() == 0) {
			newPageNumber++;
			continue;
		}

		for (Float[] ratios : cluster.getRatiosList()) {

			pageDict = reader.getPageN(newPageNumber);

			List<Rectangle> boxes = new ArrayList<Rectangle>();
			boxes.add(reader.getBoxSize(newPageNumber, "media"));
			boxes.add(reader.getBoxSize(newPageNumber, "crop"));
			int rotation = reader.getPageRotation(newPageNumber);

			Rectangle scaledBox = calculateScaledRectangle(boxes, ratios, rotation);

			PdfArray scaleBoxArray = new PdfArray();
			scaleBoxArray.add(new PdfNumber(scaledBox.getLeft()));
			scaleBoxArray.add(new PdfNumber(scaledBox.getBottom()));
			scaleBoxArray.add(new PdfNumber(scaledBox.getRight()));
			scaleBoxArray.add(new PdfNumber(scaledBox.getTop()));

			pageDict.put(PdfName.CROPBOX, scaleBoxArray);
			pageDict.put(PdfName.MEDIABOX, scaleBoxArray);
			// increment the pagenumber
			newPageNumber++;
		}
		int[] range = new int[2];
		range[0] = newPageNumber - 1;
		range[1] = cropJob.getSourcePageCount() + (newPageNumber - origPageNumber);
		SimpleBookmark.shiftPageNumbers(cropJob.getSourceBookmarks(), cluster.getRatiosList().size() - 1, range);
	}
	stamper.setOutlines(cropJob.getSourceBookmarks());
	stamper.close();
	reader.close();
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
/**
 * apply the rotation to the given page if necessary
 * 
 * @param pageNmber
 */
private void apply(int pageNmber) {
    PdfDictionary dictionary = reader.getPageN(pageNmber);
    dictionary.put(PdfName.ROTATE,
            new PdfNumber(rotation.addRotation(getRotation(reader.getPageRotation(pageNmber))).getDegrees()));
}
 

import com.itextpdf.text.pdf.PdfNumber; //导入依赖的package包/类
@Override
public void exportElement(JRPdfExporterContext exporterContext,	JRGenericPrintElement element) {
	try	{
		PdfWriter writer = exporterContext.getPdfWriter();
		PdfIndirectObject swfRef;
		boolean newContext = !existingContexts.containsKey(exporterContext);
		if (newContext) {
			PdfDictionary extensions = new PdfDictionary();
			PdfDictionary adobeExtension = new PdfDictionary();
			adobeExtension.put(new PdfName("BaseVersion"), PdfWriter.PDF_VERSION_1_7);
			adobeExtension.put(new PdfName("ExtensionLevel"), new PdfNumber(3));
			extensions.put(new PdfName("ADBE"), adobeExtension);
			writer.getExtraCatalog().put(new PdfName("Extensions"), extensions);

			byte[] swfData = getChartSwf();
			PdfFileSpecification swfFile = PdfFileSpecification.fileEmbedded(writer, null, "Open Flash Chart", swfData);
			swfRef = writer.addToBody(swfFile);
			existingContexts.put(exporterContext, swfRef);
		}
		else {
			swfRef = (PdfIndirectObject) existingContexts.get(exporterContext);
		}

		Rectangle rect = new Rectangle(element.getX() + exporterContext.getOffsetX(),
				exporterContext.getExportedReport().getPageHeight() - element.getY() - exporterContext.getOffsetY(),
				element.getX() + exporterContext.getOffsetX() + element.getWidth(),
				exporterContext.getExportedReport().getPageHeight() - element.getY() - exporterContext.getOffsetY() - element.getHeight());
		PdfAnnotation ann = new PdfAnnotation(writer, rect);
		ann.put(PdfName.SUBTYPE, new PdfName("RichMedia"));

		PdfDictionary settings = new PdfDictionary();
		PdfDictionary activation = new PdfDictionary();
		activation.put(new PdfName("Condition"), new PdfName("PV"));
		settings.put(new PdfName("Activation"), activation);
		ann.put(new PdfName("RichMediaSettings"), settings);

		PdfDictionary content = new PdfDictionary();

		HashMap<String, PdfIndirectReference> assets = new HashMap<String, PdfIndirectReference>();
		assets.put("map.swf", swfRef.getIndirectReference());
		PdfDictionary assetsDictionary = PdfNameTree.writeTree(assets, writer);
		content.put(new PdfName("Assets"), assetsDictionary);

		PdfArray configurations = new PdfArray();
		PdfDictionary configuration = new PdfDictionary();

		PdfArray instances = new PdfArray();
		PdfDictionary instance = new PdfDictionary();
		instance.put(new PdfName("Subtype"), new PdfName("Flash"));
		PdfDictionary params = new PdfDictionary();

		String chartData = ((ChartGenerator) element.getParameterValue(ChartGenerator.PARAMETER_CHART_GENERATOR)).generateChart();
		String vars = "inline_data=" + chartData;
		params.put(new PdfName("FlashVars"), new PdfString(vars));
		instance.put(new PdfName("Params"), params);
		instance.put(new PdfName("Asset"), swfRef.getIndirectReference());
		PdfIndirectObject instanceRef = writer.addToBody(instance);
		instances.add(instanceRef.getIndirectReference());
		configuration.put(new PdfName("Instances"), instances);

		PdfIndirectObject configurationRef = writer.addToBody(configuration);
		configurations.add(configurationRef.getIndirectReference());
		content.put(new PdfName("Configurations"), configurations);

		ann.put(new PdfName("RichMediaContent"), content);

		writer.addAnnotation(ann);
	}
	catch (Exception e) {
		throw new RuntimeException(e);
	}
}