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

     */
    public XmpWriter(OutputStream os, PdfDictionary info) throws IOException {
        this(os);
        if (info != null) {
            PdfName key;
            PdfObject obj;
            String value;
            for (PdfName pdfName : info.getKeys()) {
                key = pdfName;
                obj = info.get(key);
                if (obj == null)
                    continue;
                if (!obj.isString())
                    continue;
                value = ((PdfString) obj).toUnicodeString();
                try {
                    addDocInfoProperty(key, value);
                } catch (XMPException xmpExc) {

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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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            PdfName fontResourceName = (PdfName)operands.get(0);
            float size = ((PdfNumber)operands.get(1)).floatValue();


            PdfDictionary fontsDictionary = processor.resources.getAsDict(PdfName.FONT);
            CMapAwareDocumentFont font;
            PdfObject fontObject = fontsDictionary.get(fontResourceName);
            if (fontObject instanceof PdfDictionary)
                font = processor.getFont((PdfDictionary)fontObject);
            else
                font = processor.getFont((PRIndirectReference)fontObject);

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        final byte[] result;
        switch (contentObject.type())
        {
            case PdfObject.INDIRECT:
                final PRIndirectReference ref = (PRIndirectReference) contentObject;
                final PdfObject directObject = PdfReader.getPdfObjectRelease(ref);
                result = getContentBytesFromContentObject(directObject);
                break;
            case PdfObject.STREAM:
                final PRStream stream = (PRStream) PdfReader.getPdfObjectRelease(contentObject);
                result = PdfReader.getStreamBytes(stream);
                break;
            case PdfObject.ARRAY:
                // Stitch together all content before calling processContent(), because
                // processContent() resets state.
                final ByteArrayOutputStream allBytes = new ByteArrayOutputStream();
                final PdfArray contentArray = (PdfArray) contentObject;
                final ListIterator<PdfObject> iter = contentArray.listIterator();
                while (iter.hasNext())
                {
                    final PdfObject element = iter.next();
                    allBytes.write(getContentBytesFromContentObject(element));
                    allBytes.write((byte)' ');
                }
                result = allBytes.toByteArray();
                break;

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     * @throws IOException
     * @since 5.0.1
     */
    public static byte[] getContentBytesForPage(PdfReader reader, int pageNum) throws IOException {
        final PdfDictionary pageDictionary = reader.getPageN(pageNum);
        final PdfObject contentObject = pageDictionary.get(PdfName.CONTENTS);
        if (contentObject == null)
            return new byte[0];
        
        final byte[] contentBytes = ContentByteUtils.getContentBytesFromContentObject(contentObject);
        return contentBytes;

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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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    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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