Examples of com.itextpdf.text.pdf.PdfArray

com.itextpdf.text.pdf.PdfArray
PdfArray is the PDF Array object.
An array is a sequence of PDF objects. An array may contain a mixture of object types. An array is written as a left square bracket ([), followed by a sequence of objects, followed by a right square bracket (]).
This object is described in the 'Portable Document Format Reference Manual version 1.7' section 3.2.5 (page 58). @see PdfObject

            skip();


        Image img = null;
        try {
            img = new ImgRaw(iw, ih, 1, m_bpc, m_out);
            PdfArray colorspace = new PdfArray();
            colorspace.add(PdfName.INDEXED);
            colorspace.add(PdfName.DEVICERGB);
            int len = m_curr_table.length;
            colorspace.add(new PdfNumber(len / 3 - 1));
            colorspace.add(new PdfString(m_curr_table));
            PdfDictionary ad = new PdfDictionary();
            ad.put(PdfName.COLORSPACE, colorspace);
            img.setAdditional(ad);
            if (transparency) {
                img.setTransparency(new int[]{transIndex, transIndex});

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                    for (int k = 0; k < gColor; ++k) {
                        palette[k * 3] = (byte)(rgb[k] >>> 8);
                        palette[k * 3 + 1] = (byte)(rgb[k + gColor] >>> 8);
                        palette[k * 3 + 2] = (byte)(rgb[k + bColor] >>> 8);
                    }
                    PdfArray indexed = new PdfArray();
                    indexed.add(PdfName.INDEXED);
                    indexed.add(PdfName.DEVICERGB);
                    indexed.add(new PdfNumber(gColor - 1));
                    indexed.add(new PdfString(palette));
                    PdfDictionary additional = new PdfDictionary();
                    additional.put(PdfName.COLORSPACE, indexed);
                    img.setAdditional(additional);
                }
                img.setOriginalType(Image.ORIGINAL_TIFF);

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                filterMethod = is.read();
                interlaceMethod = is.read();
            }
            else if (PLTE.equals(marker)) {
                if (colorType == 3) {
                    PdfArray colorspace = new PdfArray();
                    colorspace.add(PdfName.INDEXED);
                    colorspace.add(getColorspace());
                    colorspace.add(new PdfNumber(len / 3 - 1));
                    ByteBuffer colortable = new ByteBuffer();
                    while ((len--) > 0) {
                        colortable.append_i(is.read());
                    }
                    colorspace.add(new PdfString(colorTable = colortable.toByteArray()));
                    additional.put(PdfName.COLORSPACE, colorspace);
                }
                else {
                    Utilities.skip(is, len);
                }

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                return PdfName.DEVICEGRAY;
            else
                return PdfName.DEVICERGB;
        }
        else {
            PdfArray array = new PdfArray();
            PdfDictionary dic = new PdfDictionary();
            if ((colorType & 2) == 0) {
                if (gamma == 1f)
                    return PdfName.DEVICEGRAY;
                array.add(PdfName.CALGRAY);
                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);
                    gm.add(n);
                    gm.add(n);
                    dic.put(PdfName.GAMMA, gm);
                }
                if (hasCHRM) {
                    float z = yW*((xG-xB)*yR-(xR-xB)*yG+(xR-xG)*yB);
                    float YA = yR*((xG-xB)*yW-(xW-xB)*yG+(xW-xG)*yB)/z;
                    float XA = YA*xR/yR;
                    float ZA = YA*((1-xR)/yR-1);
                    float YB = -yG*((xR-xB)*yW-(xW-xB)*yR+(xW-xR)*yB)/z;
                    float XB = YB*xG/yG;
                    float ZB = YB*((1-xG)/yG-1);
                    float YC = yB*((xR-xG)*yW-(xW-xG)*yW+(xW-xR)*yG)/z;
                    float XC = YC*xB/yB;
                    float ZC = YC*((1-xB)/yB-1);
                    float XW = XA+XB+XC;
                    float YW = 1;//YA+YB+YC;
                    float ZW = ZA+ZB+ZC;
                    PdfArray wpa = new PdfArray();
                    wpa.add(new PdfNumber(XW));
                    wpa.add(new PdfNumber(YW));
                    wpa.add(new PdfNumber(ZW));
                    wp = wpa;
                    PdfArray matrix = new PdfArray();
                    matrix.add(new PdfNumber(XA));
                    matrix.add(new PdfNumber(YA));
                    matrix.add(new PdfNumber(ZA));
                    matrix.add(new PdfNumber(XB));
                    matrix.add(new PdfNumber(YB));
                    matrix.add(new PdfNumber(ZB));
                    matrix.add(new PdfNumber(XC));
                    matrix.add(new PdfNumber(YC));
                    matrix.add(new PdfNumber(ZC));
                    dic.put(PdfName.MATRIX, matrix);
                }
                dic.put(PdfName.WHITEPOINT, wp);
                array.add(dic);
            }

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     * Replaces CalRGB and CalGray colorspaces with DeviceRGB and DeviceGray.
     */
    public void simplifyColorspace() {
        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);
            if (PdfName.INDEXED.equals(first)) {
                if (value.size() >= 2) {
                    PdfArray second = value.getAsArray(1);
                    if (second != null) {
                        value.set(1, simplifyColorspace(second));
                    }
                }
            }

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    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)
            ocsps = new PdfArray();
        if (crls == null)
            crls = new PdfArray();
        if (certs == null)
            certs = new PdfArray();
        outputDss(dss, vrim, ocsps, crls, certs);
    }

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

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    private void outputDss(PdfDictionary dss, PdfDictionary vrim, PdfArray ocsps, PdfArray crls, PdfArray certs) throws IOException {
        writer.addDeveloperExtension(PdfDeveloperExtension.ESIC_1_7_EXTENSIONLEVEL5);
      PdfDictionary catalog = reader.getCatalog();
        stp.markUsed(catalog);
        for (PdfName vkey : validated.keySet()) {
            PdfArray ocsp = new PdfArray();
            PdfArray crl = new PdfArray();
            PdfArray cert = new PdfArray();
            PdfDictionary vri = new PdfDictionary();
            for (byte[] b : validated.get(vkey).crls) {
                PdfStream ps = new PdfStream(b);
                ps.flateCompress();
                PdfIndirectReference iref = writer.addToBody(ps, false).getIndirectReference();
                crl.add(iref);
                crls.add(iref);
            }
            for (byte[] b : validated.get(vkey).ocsps) {
                PdfStream ps = new PdfStream(b);
                ps.flateCompress();
                PdfIndirectReference iref = writer.addToBody(ps, false).getIndirectReference();
                ocsp.add(iref);
                ocsps.add(iref);
            }
            for (byte[] b : validated.get(vkey).certs) {
                PdfStream ps = new PdfStream(b);
                ps.flateCompress();
                PdfIndirectReference iref = writer.addToBody(ps, false).getIndirectReference();
                cert.add(iref);
                certs.add(iref);
            }
            if (ocsp.size() > 0)
                vri.put(PdfName.OCSP, writer.addToBody(ocsp, false).getIndirectReference());
            if (crl.size() > 0)
                vri.put(PdfName.CRL, writer.addToBody(crl, false).getIndirectReference());
            if (cert.size() > 0)
                vri.put(PdfName.CERT, writer.addToBody(cert, false).getIndirectReference());
            vrim.put(vkey, writer.addToBody(vri, false).getIndirectReference());
        }
        dss.put(PdfName.VRI, writer.addToBody(vrim, false).getIndirectReference());
        if (ocsps.size() > 0)

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    if (previous != null) {
      annotationsAllowed &= previous.isAnnotationsAllowed();
      fillInAllowed &= previous.isFillInAllowed();
      fieldLocks.addAll(previous.getFieldLocks());
    }
    PdfArray ref = sigDict.getAsArray(PdfName.REFERENCE);
    if (ref != null) {
      for (int i = 0; i < ref.size(); i++) {
        PdfDictionary dict = ref.getAsDict(i);
        PdfDictionary params = dict.getAsDict(PdfName.TRANSFORMPARAMS);
        if (PdfName.DOCMDP.equals(dict.getAsName(PdfName.TRANSFORMMETHOD))) {
          certification = true;
        }
        PdfName action = params.getAsName(PdfName.ACTION);

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   */
  public List<X509CRL> getCRLsFromDSS() throws GeneralSecurityException, IOException {
    List<X509CRL> crls = new ArrayList<X509CRL>();
    if (dss == null)
      return crls;
    PdfArray crlarray = dss.getAsArray(PdfName.CRLS);
    if (crlarray == null)
      return crls;
    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    for (int i = 0; i < crlarray.size(); i++) {
      PRStream stream = (PRStream) crlarray.getAsStream(i);
      X509CRL crl = (X509CRL)cf.generateCRL(new ByteArrayInputStream(PdfReader.getStreamBytes(stream)));
      crls.add(crl);
    }
    return crls;
  }

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