Examples of com.lowagie.text.pdf.PdfDictionary

com.lowagie.text.pdf.PdfDictionary
PdfDictionary is the Pdf dictionary object.
A dictionary is an associative table containing pairs of objects. The first element of each pair is called the key and the second element is called the value. Unlike dictionaries in the PostScript language, a key must be a PdfName. A value can be any kind of PdfObject, including a dictionary. A dictionary is generally used to collect and tie together the attributes of a complex object, with each key-value pair specifying the name and value of an attribute.
A dictionary is represented by two left angle brackets (<<), followed by a sequence of key-value pairs, followed by two right angle brackets (>>).
This object is described in the 'Portable Document Format Reference Manual version 1.7' section 3.2.6 (page 59-60).
@see PdfObject @see PdfName @see BadPdfFormatException

     * @param page  the page number of the page
     * @return  a String with the content as plain text (without PDF syntax)
     * @throws IOException
     */
    public String getTextFromPage(int page) throws IOException {
        PdfDictionary pageDic = reader.getPageN(page);
        PdfDictionary resourcesDic = pageDic.getAsDict(PdfName.RESOURCES);
        
        renderListener.reset();
        PdfContentStreamProcessor processor = new PdfContentStreamProcessor(renderListener);
        processor.processContent(getContentBytesForPage(page), resourcesDic);        
        return renderListener.getResultantText();

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     * @throws IOException
     */
    static public void listContentStreamForPage(PdfReader reader, int pageNum, PrintWriter out) throws IOException {
        out.println("==============Page " + pageNum + "====================");
        out.println("- - - - - Dictionary - - - - - -");
        PdfDictionary pageDictionary = reader.getPageN(pageNum);
        out.println(getDictionaryDetail(pageDictionary));
        out.println("- - - - - Content Stream - - - - - -");
        RandomAccessFileOrArray f = reader.getSafeFile();
        
        byte[] contentBytes = reader.getPageContent(pageNum, f);

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     * @param ref the reference to the image dictionary
     * @throws BadElementException on error
     * @return the image
     */    
    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);
            }

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    private static class SetTextFont implements ContentOperator{
        public void invoke(PdfContentStreamProcessor processor, PdfLiteral operator, ArrayList operands) {
            PdfName fontResourceName = (PdfName)operands.get(0);
            float size = ((PdfNumber)operands.get(1)).floatValue();
            
            PdfDictionary fontsDictionary = processor.resources.getAsDict(PdfName.FONT);
            CMapAwareDocumentFont font = new CMapAwareDocumentFont((PRIndirectReference)fontsDictionary.get(fontResourceName));
            
            processor.gs().font = font;
            processor.gs().fontSize = size;
            
        }

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      PdfOCProperties p = writer.getOCProperties();
      PdfArray order = new PdfArray();
      order.add(l1.getRef());
      order.add(l2.getRef());
      order.add(l3.getRef());
      PdfDictionary d = new PdfDictionary();
      d.put(PdfName.ORDER, order);
      p.put(PdfName.D, d);
      // step 5
      document.close();
    } catch (Exception de) {
      de.printStackTrace();

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            PdfArray group = new PdfArray();
            group.add(new PdfString("A group of two", PdfObject.TEXT_UNICODE));
            group.add(l2.getRef());
            group.add(l3.getRef());
            order.add(group);
            PdfDictionary d = new PdfDictionary();
            d.put(PdfName.ORDER, order);
            p.put(PdfName.D, d);
            // step 5
            document.close();
        }
        catch(Exception de) {

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      PdfArray group = new PdfArray();
      group.add(new PdfString("A group of two", PdfObject.TEXT_UNICODE));
      group.add(l2.getRef());
      group.add(l3.getRef());
      order.add(group);
      PdfDictionary d = new PdfDictionary();
      d.put(PdfName.ORDER, order);
      p.put(PdfName.D, d);
    } catch (DocumentException de) {
      System.err.println(de.getMessage());
    } catch (IOException ioe) {
      System.err.println(ioe.getMessage());

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            order.add(l23.getRef());
            PdfArray group = new PdfArray();
            group.add(l2.getRef());
            group.add(l3.getRef());
            order.add(group);
            PdfDictionary d = new PdfDictionary();
            d.put(PdfName.ORDER, order);
            p.put(PdfName.D, d);
            // step 5
            document.close();
        }
        catch(Exception de) {

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                        }
                    }
                }


                if (!dests.isEmpty()) {
                    PdfDictionary nametree = new PdfDictionary();
                    nametree.put(PdfName.NAMES, dests);
                    PdfIndirectReference nameTreeRef = _writer.addToBody(nametree).getIndirectReference();


                    PdfDictionary names = new PdfDictionary();
                    names.put(PdfName.DESTS, nameTreeRef);
                    PdfIndirectReference destinationsRef = _writer.addToBody(names).getIndirectReference();


                    _writer.getExtraCatalog().put(PdfName.NAMES, destinationsRef);
                }
            } catch (IOException e) {

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                // TODO: need to find something better to put into these fields...
                String annotation = null;
                Iterator widgetIter = item.widgets.iterator();
                while (widgetIter.hasNext()) {
                    PdfDictionary dict = (PdfDictionary) widgetIter.next();
                    
                    // if the "/Type" value is "/Annot", then get the value of "/TU" for the annotation
                    
                    /* Interesting... this doesn't work, I guess we have to iterate to find the stuff...
                    PdfObject typeValue = dict.get(new PdfName("/Type"));
                    if (typeValue != null && "/Annot".equals(typeValue.toString())) {
                        PdfObject tuValue = dict.get(new PdfName("/TU"));
                        annotation = tuValue.toString();
                    }
                    */
                    
                    PdfObject typeValue = null;
                    PdfObject tuValue = null;
                    
                    Set dictKeys = dict.getKeys();
                    Iterator dictKeyIter = dictKeys.iterator();
                    while (dictKeyIter.hasNext()) {
                        PdfName dictKeyName = (PdfName) 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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