Examples of com.itextpdf.text.pdf.PdfObject

com.itextpdf.text.pdf.PdfObject
PdfObject is the abstract superclass of all PDF objects.
PDF supports seven basic types of objects: Booleans, numbers, strings, names, arrays, dictionaries and streams. In addition, PDF provides a null object. Objects may be labeled so that they can be referred to by other objects.
All these basic PDF objects are described in the 'Portable Document Format Reference Manual version 1.3' Chapter 4 (pages 37-54). @see PdfNull @see PdfBoolean @see PdfNumber @see PdfString @see PdfName @see PdfArray @see PdfDictionary @see PdfStream @see PdfIndirectReference

    static public String getDictionaryDetail(PdfDictionary dic, int depth){
        StringBuffer builder = new StringBuffer();
        builder.append('(');
        List<PdfName> subDictionaries = new ArrayList<PdfName>();
        for (PdfName key: dic.getKeys()) {
            PdfObject val = dic.getDirectObject(key);
            if (val.isDictionary())
                subDictionaries.add(key);
            builder.append(key);
            builder.append('=');
            builder.append(val);
            builder.append(", ");

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    private static PdfDictionary parseInlineImageDictionary(PdfContentParser ps) throws IOException{
        // by the time we get to here, we have already parsed the BI operator
        PdfDictionary dictionary = new PdfDictionary();
        
        for(PdfObject key = ps.readPRObject(); key != null && !"ID".equals(key.toString()); key = ps.readPRObject()){
            PdfObject value = ps.readPRObject();


            PdfName resolvedKey = inlineImageEntryAbbreviationMap.get(key);
            if (resolvedKey == null)
                resolvedKey = (PdfName)key;

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            if (ch == -1)
                throw new InlineImageParseException("End of content stream reached before end of image data");
            
            bytes[i] = (byte)ch;
        }
        PdfObject ei = ps.readPRObject();
        if (!ei.toString().equals("EI"))
            throw new InlineImageParseException("EI not found after end of image data");
        
        return bytes;
    }

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                pngColorType = 2;
            }
        }
        else if (colorspace instanceof PdfArray) {
            PdfArray ca = (PdfArray)colorspace;
            PdfObject tyca = ca.getDirectObject(0);
            if (PdfName.CALGRAY.equals(tyca)) {
                stride = (width * bpc + 7) / 8;
                pngColorType = 0;
            }
            else if (PdfName.CALRGB.equals(tyca)) {
                if (bpc == 8 || bpc == 16) {
                    stride = (width * bpc * 3 + 7) / 8;
                    pngColorType = 2;
                }
            }
            else if (PdfName.ICCBASED.equals(tyca)) {
                PRStream pr = (PRStream)ca.getDirectObject(1);
                int n = pr.getAsNumber(PdfName.N).intValue();
                if (n == 1) {
                    stride = (width * bpc + 7) / 8;
                    pngColorType = 0;
                    icc = PdfReader.getStreamBytes(pr);
                }
                else if (n == 3) {
                    stride = (width * bpc * 3 + 7) / 8;
                    pngColorType = 2;
                    icc = PdfReader.getStreamBytes(pr);
                }
            }
            else if (allowIndexed && PdfName.INDEXED.equals(tyca)) {
                findColorspace(ca.getDirectObject(1), false);
                if (pngColorType == 2) {
                    PdfObject id2 = ca.getDirectObject(3);
                    if (id2 instanceof PdfString) {
                        palette = ((PdfString)id2).getBytes();
                    }
                    else if (id2 instanceof PRStream) {
                        palette = PdfReader.getStreamBytes(((PRStream)id2));

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        pngColorType = -1;
        width = dictionary.getAsNumber(PdfName.WIDTH).intValue();
        height = dictionary.getAsNumber(PdfName.HEIGHT).intValue();
        bpc = dictionary.getAsNumber(PdfName.BITSPERCOMPONENT).intValue();
        pngBitDepth = bpc;
        PdfObject colorspace = dictionary.getDirectObject(PdfName.COLORSPACE);
        palette = null;
        icc = null;
        stride = 0;
        findColorspace(colorspace, true);
        ByteArrayOutputStream ms = new ByteArrayOutputStream();
        if (pngColorType < 0) {
            if (bpc != 8)
                return null;
            if (PdfName.DEVICECMYK.equals(colorspace)) {
            }
            else if (colorspace instanceof PdfArray) {
                PdfArray ca = (PdfArray)colorspace;
                PdfObject tyca = ca.getDirectObject(0);
                if (!PdfName.ICCBASED.equals(tyca))
                    return null;
                PRStream pr = (PRStream)ca.getDirectObject(1);
                int n = pr.getAsNumber(PdfName.N).intValue();
                if (n != 4) {

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     * Displays an XObject using the registered handler for this XObject's subtype
     * @param xobjectName the name of the XObject to retrieve from the resource dictionary
     */
    private void displayXObject(PdfName xobjectName) throws IOException {
        PdfDictionary xobjects = resources.getAsDict(PdfName.XOBJECT);
        PdfObject xobject = xobjects.getDirectObject(xobjectName);
        PdfStream xobjectStream = (PdfStream)xobject;


        PdfName subType = xobjectStream.getAsName(PdfName.SUBTYPE);
        if (xobject.isStream()){
            XObjectDoHandler handler = xobjectDoHandlers.get(subType);
            if (handler == null)
                handler = xobjectDoHandlers.get(PdfName.DEFAULT);
            handler.handleXObject(this, xobjectStream, xobjects.getAsIndirectObject(xobjectName));
        } else {

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        @Override
        public PdfObject getDirectObject(PdfName key) {
            for (int i = resourcesStack.size() - 1; i >= 0; i--){
                PdfDictionary subResource = resourcesStack.get(i);
                if (subResource != null){
                    PdfObject obj =  subResource.getDirectObject(key);
                    if (obj != null) return obj;
                }
            }
            return super.getDirectObject(key); // shouldn't be necessary, but just in case we've done something crazy
        }

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    private static class ShowTextArray implements ContentOperator{
        public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList<PdfObject> operands) {
            PdfArray array = (PdfArray)operands.get(0);
            float tj = 0;
            for (Iterator<PdfObject> i = array.listIterator(); i.hasNext(); ) {
                PdfObject entryObj = i.next();
                if (entryObj instanceof PdfString){
                    processor.displayPdfString((PdfString)entryObj);
                    tj = 0;
                } else {
                    tj = ((PdfNumber)entryObj).floatValue();

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    public void invoke(PdfContentStreamProcessor processor,
        PdfLiteral operator, ArrayList<PdfObject> operands)
        throws Exception {


        PdfObject properties = operands.get(1);


      processor.beginMarkedContent((PdfName)operands.get(0), getPropertiesDictionary(properties, processor.resources));
    }

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    public static Image getInstance(final PRIndirectReference ref) throws BadElementException {
        PdfDictionary dic = (PdfDictionary)PdfReader.getPdfObjectRelease(ref);
        int width = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.WIDTH))).intValue();
        int height = ((PdfNumber)PdfReader.getPdfObjectRelease(dic.get(PdfName.HEIGHT))).intValue();
        Image imask = null;
        PdfObject obj = dic.get(PdfName.SMASK);
        if (obj != null && obj.isIndirect()) {
            imask = getInstance((PRIndirectReference)obj);
        }
        else {
            obj = dic.get(PdfName.MASK);
            if (obj != null && obj.isIndirect()) {
                PdfObject obj2 = PdfReader.getPdfObjectRelease(obj);
                if (obj2 instanceof PdfDictionary)
                    imask = getInstance((PRIndirectReference)obj);
            }
        }
        Image img = new ImgRaw(width, height, 1, 1, null);

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