Java 类com.lowagie.text.pdf.PdfEncryptor 实例源码

/**
 * Encrypts a PDF document.
 * 
 * @param args
 *            input_file output_file user_password owner_password
 *            permissions 128|40 [new info string pairs]
 */
public static void main(String args[]) {
    System.out.println("PDF document encryptor");
    if (args.length <= STRENGTH || args[PERMISSIONS].length() != 8) {
        usage();
        return;
    }
    try {
        int permissions = 0;
        String p = args[PERMISSIONS];
        for (int k = 0; k < p.length(); ++k) {
            permissions |= (p.charAt(k) == '0' ? 0 : permit[k]);
        }
        System.out.println("Reading " + args[INPUT_FILE]);
        PdfReader reader = new PdfReader(args[INPUT_FILE]);
        System.out.println("Writing " + args[OUTPUT_FILE]);
        HashMap moreInfo = new HashMap();
        for (int k = MOREINFO; k < args.length - 1; k += 2)
            moreInfo.put(args[k], args[k + 1]);
        PdfEncryptor.encrypt(reader, new FileOutputStream(args[OUTPUT_FILE]), args[USER_PASSWORD].getBytes(),
                args[OWNER_PASSWORD].getBytes(), permissions, args[STRENGTH].equals("128"), moreInfo);
        System.out.println("Done.");
    } catch (Exception e) {
        e.printStackTrace();
    }
}

/**
 * Encrypts a PDF document.
 * 
 * @param args input_file output_file user_password owner_password permissions 128|40 [new info string pairs]
 */
public static void main (String args[]) {
    System.out.println("PDF document encryptor");
    if (args.length <= STRENGTH || args[PERMISSIONS].length() != 8) {
        usage();
        return;
    }
    try {
        int permissions = 0;
        String p = args[PERMISSIONS];
        for (int k = 0; k < p.length(); ++k) {
            permissions |= (p.charAt(k) == '0' ? 0 : permit[k]);
        }
        System.out.println("Reading " + args[INPUT_FILE]);
        PdfReader reader = new PdfReader(args[INPUT_FILE]);
        System.out.println("Writing " + args[OUTPUT_FILE]);
        HashMap moreInfo = new HashMap();
        for (int k = MOREINFO; k < args.length - 1; k += 2)
            moreInfo.put(args[k], args[k + 1]);
        PdfEncryptor.encrypt(reader, new FileOutputStream(args[OUTPUT_FILE]),
            args[USER_PASSWORD].getBytes(), args[OWNER_PASSWORD].getBytes(), permissions, args[STRENGTH].equals("128"), moreInfo);
        System.out.println("Done.");
    }
    catch (Exception e) {
        e.printStackTrace();
    }
}

/**
 * Reads and encrypts an existing PDF file.
 */
@Test
public void main() throws Exception {
    PdfReader reader = new PdfReader(PdfTestBase.RESOURCES_DIR + "ChapterSection.pdf");
    PdfEncryptor.encrypt(reader, PdfTestBase.getOutputStream("encrypted.pdf"), "Hello".getBytes(),
            "World".getBytes(), PdfWriter.ALLOW_PRINTING | PdfWriter.ALLOW_COPY, false);
}

/**
     * Reads and encrypts an existing PDF file.
     * 
     * @param args
     *            no arguments needed
     */
    public static void main(String[] args) {
        System.out.println("Encryptor example");
        try {
            //Can't use filename directly
//          PdfReader reader = new PdfReader("ChapterSection.pdf");
            PdfReader reader = new PdfReader(PdfTestRunner.getActivity().getResources().openRawResource(R.raw.chaptersection));
            PdfEncryptor.encrypt(reader, new FileOutputStream(android.os.Environment.getExternalStorageDirectory() + java.io.File.separator + "droidtext" + java.io.File.separator + "encrypted.pdf"), "Hello".getBytes(), "World".getBytes(),
                    PdfWriter.ALLOW_PRINTING | PdfWriter.ALLOW_COPY, false);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

/**
 * Establece permisos pdf a solo impresion
 * @param pdfOut Outputstream al pdf de salida con los permisos aplicados
 * @param pdfIn InputStreams del pdf sobre el que se deben aplicar los permisos
 */
public static void establecerSoloImpresion(OutputStream pdfOut,InputStream pdfIn) throws Exception{
    PdfReader reader = new PdfReader(pdfIn);
    PdfEncryptor.encrypt(reader, pdfOut, null,null, PdfWriter.AllowCopy | PdfWriter.AllowPrinting, false);      
   }