Examples of com.lowagie.text.pdf.PdfObject

com.lowagie.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

        if (info != null) {
          DublinCoreSchema dc = new DublinCoreSchema();
          PdfSchema p = new PdfSchema();
          XmpBasicSchema basic = new XmpBasicSchema();
          PdfName key;
          PdfObject obj;
          for (Iterator it = info.getKeys().iterator(); it.hasNext();) {
            key = (PdfName)it.next();
            obj = info.get(key);
            if (obj == null)
              continue;

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        public Object construct() {
          try {
            PdfReader reader = new PdfReader(
                ((File) getValue("srcfile")).getAbsolutePath());
            for (int i = 0; i < reader.getXrefSize(); i++) {
              PdfObject pdfobj = reader.getPdfObject(i);
              if (pdfobj != null) {
                if (pdfobj.isStream()) {
                  PdfStream pdfdict = (PdfStream) pdfobj;
                  PdfObject pdfsubtype = pdfdict
                      .get(PdfName.SUBTYPE);
                  if (pdfsubtype == null) {
                    continue;
                  }
                  if (!pdfsubtype.toString().equals(
                      PdfName.IMAGE.toString())) {
                    continue;
                  }
                  System.out.println("total_number_of_pictures: "
                      + total_number_of_pictures);

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  public FormTreeNode(PdfObjectTreeNode node) {
    super("form.png");
    this.object_node = node;
    if (node.isDictionary()) {
      PdfDictionary dict = (PdfDictionary)node.getPdfObject();
      PdfObject fieldname = dict.get(PdfName.T);
      if (fieldname != null) {
        this.setUserObject(fieldname);
      }
      else {
        this.setUserObject("unnamed field");

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      }
      File dest = (File) getValue("destfile");


      // we create a reader for a certain document
      PdfReader reader = new PdfReader(src.getAbsolutePath());
      PdfObject o;
      PdfDictionary d;
      PdfDictionary l;
      PdfName n;
      for (int i = 1; i < reader.getXrefSize(); i++) {
        o = reader.getPdfObject(i);

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   * @return  a caption for the object corresponding with the key in the dictionary.
   */
  public static String getDictionaryEntryCaption(PdfDictionary dict, PdfName key) {
    StringBuffer buf = new StringBuffer(key.toString());
    buf.append(": ");
        PdfObject valObj = dict.get(key);
        if (valObj.isIndirect()) {
            buf.append( getCaption( valObj ) );
        } else {
            buf.append(dict.get(key).toString());
        }
        return buf.toString();

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        StringBuffer builder = new StringBuffer();
        builder.append('(');
        List subDictionaries = new ArrayList();
        for (Iterator i = dic.getKeys().iterator(); i.hasNext(); ) {
            PdfName key = (PdfName)i.next();
            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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    public static Image getInstance(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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        if (additional == null)
            return;
        PdfArray value = additional.getAsArray(PdfName.COLORSPACE);
        if (value == null)
            return;
        PdfObject cs = simplifyColorspace(value);
        PdfObject newValue;
        if (cs.isName())
            newValue = cs;
        else {
            newValue = value;
            PdfName first = value.getAsName(0);

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   * @return  false if there are no objects left to check.
   */
  public boolean storeNextObject() {
    while (current < n) {
      current++;
      PdfObject object = reader.getPdfObjectRelease(current);
      if (object != null) {
        int idx = size();
        idxToRef.put(idx, current);
        refToIdx.put(current, idx);
        store(object);

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   * Loads an object based on its reference number in the xref table.
   * @param ref  a reference number in the xref table.
   * @return  a PDF object
   */
  public PdfObject loadObjectByReference(int ref) {
    PdfObject object = getObjectByReference(ref);
    if (object instanceof PdfNull) {
      int idx = getIndexByRef(ref);
      object = reader.getPdfObject(ref);
      objects.set(idx, object);
    }

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