import java.io.FileOutputStream;
import com.lowagie.text.pdf.PdfEncryptor;
import com.lowagie.text.pdf.PdfReader;
import com.lowagie.text.pdf.PdfWriter;
public class EncryptorExamplePDF {
public static void main(String[] args) {
try {
PdfReader reader = new PdfReader("YourOwnPDF.pdf");
PdfEncryptor.encrypt(reader, new FileOutputStream("EncryptorExamplePDF.pdf"), "Hello".getBytes(),
"World".getBytes(), PdfWriter.AllowPrinting | PdfWriter.AllowCopy, false);
} catch (Exception e) {
e.printStackTrace();
}
}
}
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