public void setEncryption(Certificate[] certs, int[] permissions, int encryptionType)
throws DocumentException {
if (stamper.isAppend())
throw new DocumentException("Append mode does not support changing the encryption status.");
if (stamper.isContentWritten())
throw new DocumentException("Content was already written to the output.");
stamper.setEncryption(certs, permissions, encryptionType);
}
public void setEncryption(
byte userPassword[], byte ownerPassword[], int permissions, int encryptionType)
throws DocumentException {
if (stamper.isAppend())
throw new DocumentException("Append mode does not support changing the encryption status.");
if (stamper.isContentWritten())
throw new DocumentException("Content was already written to the output.");
stamper.setEncryption(userPassword, ownerPassword, permissions, encryptionType);
}
public void setEncryption(
byte userPassword[], byte ownerPassword[], int permissions, boolean strength128Bits)
throws DocumentException {
if (stamper.isAppend())
throw new DocumentException("Append mode does not support changing the encryption status.");
if (stamper.isContentWritten())
throw new DocumentException("Content was already written to the output.");
stamper.setEncryption(
userPassword,
ownerPassword,
permissions,
strength128Bits ? PdfWriter.STANDARD_ENCRYPTION_128 : PdfWriter.STANDARD_ENCRYPTION_40);
}
public void setFullCompression() {
if (stamper.isAppend()) return;
stamper.setFullCompression();
}