[JAVA] PDF 페이지 중간 삭제

try {
	File file = new File(decPdfUrl);
	PDDocument doc = PDDocument.load(file);

	doc.removePage(Integer.parseInt(pageNum) - 1);
	System.out.println("page removed");

	// Saving the document
	doc.save(decPdfUrl);

	doc.close();
} catch (Exception e) {
	e.printStackTrace();
}