Examples of com.itextpdf.text.pdf.PdfDictionary

com.itextpdf.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

        float right = pageSize.getWidth() - left;
        float bottom = (pageSize.getHeight() - kTextHeight) / 2;
        float top = pageSize.getHeight() - bottom;
        PdfRectangle rect = new PdfRectangle(left, bottom + kOffset, right, top + kOffset);
        for (int i = 1; i <= n; i++) {
            PdfDictionary pageDict = reader.getPageN(i);
            pageDict.put(PdfName.CROPBOX, rect);
        }
        PdfStamper stamper = new PdfStamper(reader, new FileOutputStream(output));
        stamper.close();
    }

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        // Validate last timestamp on the current date.
        SignatureValidator.validate(lastSignature, reader, rootCertificates);


        // Get OCSP responses and CRLs from DSS to validate old signatures.
        PdfDictionary dictionary = reader.getCatalog().getAsDict(PdfName.DSS);
        if (dictionary == null) {
            throw new NoDSSException(messages.getString(
                "Document_has_no_DSS_(Document_Security_Store)."));
        }
        PdfArray ocspArray = dictionary.getAsArray(PdfName.OCSPS);
        ArrayList<BasicOCSPResp> ocsps = new ArrayList<BasicOCSPResp>();
        if (ocspArray != null) {
            for (int i = 0; i < ocspArray.size(); i++) {
                PRStream stream = (PRStream) ocspArray.getAsStream(i);
                OCSPResp response = new OCSPResp(PdfReader.getStreamBytes(stream));
                BasicOCSPResp basicResponse = (BasicOCSPResp) response.getResponseObject();
                ocsps.add(basicResponse);
            }
        }
        PdfArray crlArray = dictionary.getAsArray(PdfName.CRLS);
        ArrayList<X509CRL> crls = new ArrayList<X509CRL>();
        if (crlArray != null) {
            for (int i = 0; i < crlArray.size(); i++) {
                PRStream stream = (PRStream) crlArray.getAsStream(i);
                X509CRL crl = (X509CRL) factory.generateCRL(new ByteArrayInputStream(PdfReader.getStreamBytes(stream)));

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

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            throw new IOException("Not enough space");


        byte[] paddedSig = new byte[estimatedSize];
        System.arraycopy(encodedSig, 0, paddedSig, 0, encodedSig.length);


        PdfDictionary dic2 = new PdfDictionary();
        dic2.put(PdfName.CONTENTS, new PdfString(paddedSig).setHexWriting(true));
        sap.close(dic2);
    }

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                        }
                        break;
                }
                break;
            case PdfIsoKeys.PDFISOKEY_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(MessageLocalization.getComposedMessage("blend.mode.1.not.allowed", obj.toString()));
                obj = gs.get(PdfName.CA);
                double v = 0.0;
                if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
                    throw new PdfXConformanceException(MessageLocalization.getComposedMessage("transparency.is.not.allowed.ca.eq.1", String.valueOf(v)));
                obj = gs.get(PdfName.ca);
                v = 0.0;
                if (obj != null && (v = ((PdfNumber)obj).doubleValue()) != 1.0)
                    throw new PdfXConformanceException(MessageLocalization.getComposedMessage("transparency.is.not.allowed.ca.eq.1", String.valueOf(v)));
                break;
            case PdfIsoKeys.PDFISOKEY_LAYER:

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            throw new IOException("Not enough space");


        byte[] paddedSig = new byte[contentEstimated];
        System.arraycopy(tsToken, 0, paddedSig, 0, tsToken.length);


        PdfDictionary dic2 = new PdfDictionary();
        dic2.put(PdfName.CONTENTS, new PdfString(paddedSig).setHexWriting(true));
        sap.close(dic2);
    }

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        DERSequence seq = new DERSequence(v3);
        return seq.getEncoded();
    }
    
    private PdfName getSignatureHashKey(String signatureName) throws NoSuchAlgorithmException, IOException {
        PdfDictionary dic = acroFields.getSignatureDictionary(signatureName);
        PdfString contents = dic.getAsString(PdfName.CONTENTS);
        byte[] bc = contents.getOriginalBytes();
        byte[] bt = null;
        if (PdfName.ETSI_RFC3161.equals(PdfReader.getPdfObject(dic.get(PdfName.SUBFILTER)))) {
            ASN1InputStream din = new ASN1InputStream(new ByteArrayInputStream(bc));
            ASN1Primitive pkcs = din.readObject();
            bc = pkcs.getEncoded();
        }
        bt = hashBytesSha1(bc);

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     */
    public void merge() throws IOException {
        if (used || validated.isEmpty())
            return;
        used = true;
        PdfDictionary catalog = reader.getCatalog();
        PdfObject dss = catalog.get(PdfName.DSS);
        if (dss == null)
            createDss();
        else
            updateDss();
    }

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        else
            updateDss();
    }
    
    private void updateDss() throws IOException {
        PdfDictionary catalog = reader.getCatalog();
        stp.markUsed(catalog);
        PdfDictionary dss = catalog.getAsDict(PdfName.DSS);
        PdfArray ocsps = dss.getAsArray(PdfName.OCSPS);
        PdfArray crls = dss.getAsArray(PdfName.CRLS);
        PdfArray certs = dss.getAsArray(PdfName.CERTS);
        dss.remove(PdfName.OCSPS);
        dss.remove(PdfName.CRLS);
        dss.remove(PdfName.CERTS);
        PdfDictionary vrim = dss.getAsDict(PdfName.VRI);
        //delete old validations
        if (vrim != null) {
            for (PdfName n : vrim.getKeys()) {
                if (validated.containsKey(n)) {
                    PdfDictionary vri = vrim.getAsDict(n);
                    if (vri != null) {
                        deleteOldReferences(ocsps, vri.getAsArray(PdfName.OCSP));
                        deleteOldReferences(crls, vri.getAsArray(PdfName.CRL));
                        deleteOldReferences(certs, vri.getAsArray(PdfName.CERT));
                    }
                }
            }
        }
        if (ocsps == null)

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            }
        }
    }
    
    private void createDss() throws IOException {
        outputDss(new PdfDictionary(), new PdfDictionary(), new PdfArray(), new PdfArray(), new PdfArray());
    }

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