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

  public static PdfViewerPreferencesImp getViewerPreferences(PdfDictionary catalog) {
    PdfViewerPreferencesImp preferences = new PdfViewerPreferencesImp();
    int prefs = 0;
    PdfName name = null;
    // page layout
    PdfObject obj = PdfReader.getPdfObjectRelease(catalog.get(PdfName.PAGELAYOUT));
    if (obj != null && obj.isName()) {
      name = (PdfName) obj;
      if (name.equals(PdfName.SINGLEPAGE))
        prefs |= PdfWriter.PageLayoutSinglePage;
      else if (name.equals(PdfName.ONECOLUMN))
        prefs |= PdfWriter.PageLayoutOneColumn;
      else if (name.equals(PdfName.TWOCOLUMNLEFT))
        prefs |= PdfWriter.PageLayoutTwoColumnLeft;
      else if (name.equals(PdfName.TWOCOLUMNRIGHT))
        prefs |= PdfWriter.PageLayoutTwoColumnRight;
      else if (name.equals(PdfName.TWOPAGELEFT))
        prefs |= PdfWriter.PageLayoutTwoPageLeft;
      else if (name.equals(PdfName.TWOPAGERIGHT))
        prefs |= PdfWriter.PageLayoutTwoPageRight;
    }
    // page mode
    obj = PdfReader.getPdfObjectRelease(catalog.get(PdfName.PAGEMODE));
    if (obj != null && obj.isName()) {
      name = (PdfName) obj;
      if (name.equals(PdfName.USENONE))
        prefs |= PdfWriter.PageModeUseNone;
      else if (name.equals(PdfName.USEOUTLINES))
        prefs |= PdfWriter.PageModeUseOutlines;
      else if (name.equals(PdfName.USETHUMBS))
        prefs |= PdfWriter.PageModeUseThumbs;
      else if (name.equals(PdfName.USEOC))
        prefs |= PdfWriter.PageModeUseOC;
      else if (name.equals(PdfName.USEATTACHMENTS))
        prefs |= PdfWriter.PageModeUseAttachments;
    }
    // set page layout and page mode preferences
    preferences.setViewerPreferences(prefs);
    // other preferences
    obj = PdfReader.getPdfObjectRelease(catalog
        .get(PdfName.VIEWERPREFERENCES));
    if (obj != null && obj.isDictionary()) {
      PdfDictionary vp = (PdfDictionary) obj;
      for (int i = 0; i < VIEWER_PREFERENCES.length; i++) {
        obj = PdfReader.getPdfObjectRelease(vp.get(VIEWER_PREFERENCES[i]));
        preferences.addViewerPreference(VIEWER_PREFERENCES[i], obj);
      }

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                PdfImage image = (PdfImage)obj1;
                if (image.get(PdfName.SMASK) != null)
                    throw new PdfXConformanceException("The /SMask key is not allowed in images.");
                switch (conf) {
                    case PdfWriter.PDFX1A2001:
                        PdfObject cs = image.get(PdfName.COLORSPACE);
                        if (cs == null)
                            return;
                        if (cs.isName()) {
                            if (PdfName.DEVICERGB.equals(cs))
                                throw new PdfXConformanceException("Colorspace RGB is not allowed.");
                        }
                        else if (cs.isArray()) {
                            if (PdfName.CALRGB.equals(((PdfArray)cs).getArrayList().get(0)))
                                throw new PdfXConformanceException("Colorspace CalRGB is not allowed.");
                        }
                        break;
                }
                break;
            case PDFXKEY_GSTATE:
                PdfDictionary gs = (PdfDictionary)obj1;
                PdfObject obj = gs.get(PdfName.BM);
                if (obj != null && !PdfGState.BM_NORMAL.equals(obj) && !PdfGState.BM_COMPATIBLE.equals(obj))
                    throw new PdfXConformanceException("Blend mode " + obj.toString() + " not allowed.");
                obj = gs.get(PdfName.CA);
                double v = 0.0;
                if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
                    throw new PdfXConformanceException("Transparency is not allowed: /CA = " + v);
                obj = gs.get(PdfName.ca);

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                dic.put(PdfName.GAMMA, new PdfNumber(gamma));
                dic.put(PdfName.WHITEPOINT, new PdfLiteral("[1 1 1]"));
                array.add(dic);
            }
            else {
                PdfObject wp = new PdfLiteral("[1 1 1]");
                array.add(PdfName.CALRGB);
                if (gamma != 1f) {
                    PdfArray gm = new PdfArray();
                    PdfNumber n = new PdfNumber(gamma);
                    gm.add(n);

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        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 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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     * Replaces CalRGB and CalGray colorspaces with DeviceRGB and DeviceGray.
     */    
    public void simplifyColorspace() {
        if (additional == null)
            return;
        PdfObject value = additional.get(PdfName.COLORSPACE);
        if (value == null || !value.isArray())
            return;
        PdfObject cs = simplifyColorspace(value);
        if (cs.isName())
            value = cs;
        else {
            PdfObject first = (PdfObject)(((PdfArray)value).getArrayList().get(0));
            if (PdfName.INDEXED.equals(first)) {
                ArrayList array = ((PdfArray)value).getArrayList();
                if (array.size() >= 2 && ((PdfObject)array.get(1)).isArray()) {
                     array.set(1, simplifyColorspace((PdfObject)array.get(1)));
                }

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   * Gets a PDF Name from an array or returns the object that was passed.
   */
    private PdfObject simplifyColorspace(PdfObject obj) {
        if (obj == null || !obj.isArray())
            return obj;
        PdfObject first = (PdfObject)(((PdfArray)obj).getArrayList().get(0));
        if (PdfName.CALGRAY.equals(first))
            return PdfName.DEVICEGRAY;
        else if (PdfName.CALRGB.equals(first))
            return PdfName.DEVICERGB;
        else

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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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                        PdfObject tuValue = dict.get(new PdfName("/TU"));
                        annotation = tuValue.toString();
                    }
                    */


                    PdfObject typeValue = null;
                    PdfObject tuValue = null;


                    Set<PdfName> dictKeys = UtilGenerics.checkSet(dict.getKeys());
                    Iterator<PdfName> dictKeyIter = dictKeys.iterator();
                    while (dictKeyIter.hasNext()) {
                        PdfName dictKeyName = dictKeyIter.next();
                        PdfObject dictObject = dict.get(dictKeyName);


                        if ("/Type".equals(dictKeyName.toString())) {
                            typeValue = dictObject;
                        } else if ("/TU".equals(dictKeyName.toString())) {
                            tuValue = dictObject;

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                        PdfObject tuValue = dict.get(new PdfName("/TU"));
                        annotation = tuValue.toString();
                    }
                    */


                    PdfObject typeValue = null;
                    PdfObject tuValue = null;


                    Set<PdfName> dictKeys = UtilGenerics.checkSet(dict.getKeys());
                    for(PdfName dictKeyName : dictKeys) {
                        PdfObject dictObject = dict.get(dictKeyName);


                        if ("/Type".equals(dictKeyName.toString())) {
                            typeValue = dictObject;
                        } else if ("/TU".equals(dictKeyName.toString())) {
                            tuValue = dictObject;

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