[spring] itext pdf 문서에 비밀번호 걸기

1. 라이브러리 - itextpdf.jar 2. code 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 public static void main(String[] args) { try { OutputStream file = new FileOutputStream(new File("D:\\Test.pdf")); Document document = new Document(); PdfWriter writer = PdfWriter.getInstance(document, file); writer.setEncryption("hello".getBytes(), "hello123".getBytes(), PdfWriter.ALLOW_PRINTING, PdfWriter.ENCRYPTION_AES_128); document.open(); document.add(new Paragraph("Hello World, iText")); document.add(new...