[JAVA] 이미지 파일 PDF파일 변경

/**
	 * @param orgFilePath 기존 파일 경로/명
	 * @param filePath // 바꿀 파일 경로/명
	 */
	public static void tifToPDF(String orgFilePath,String filePath){
		String imgeFilename = orgFilePath;
        Document document = new Document();
        try {
	        PdfWriter writer = PdfWriter.getInstance(document,new FileOutputStream(filePath));
	        writer.setStrictImageSequence(true);
	        document.open();
	
	        Image image;
	        RandomAccessFileOrArray ra = new RandomAccessFileOrArray(imgeFilename);
	        int pages = TiffImage.getNumberOfPages(ra);
	        for (int i = 1; i <= pages; i++) {
	            image = TiffImage.getTiffImage(ra, i);
	            Rectangle pageSize = new Rectangle(image.getWidth(),
	                    image.getHeight());
	            document.setPageSize(pageSize);
	            document.add(image);
	            document.newPage();
	        }
	        
	        document.close();
		} catch (Exception e) {
			e.printStackTrace();
		}finally{
			if(document!=null)document.close();
		}	
	}
	
	/**
	 * @param orgFilePath jpg  full 경로
	 * @param filePath pdf full경로 
	 */
	public static void pngToPdf(String orgFilePath,String filePath){
		
		if (!filePath.endsWith(".pdf")){
			System.err.println("Last argument must be the destination .pdf file");
			System.exit(1);
		}
		
		PDDocument doc = new PDDocument();
		try{
			PDPage page = new PDPage();
			doc.addPage(page);
		
			PDImageXObject pdImage = PDImageXObject.createFromFile(orgFilePath, doc);
		
			PDPageContentStream contents = new PDPageContentStream(doc, page);
		
			contents.drawImage(pdImage, 0, 0, 612, 796);
			contents.close();
			doc.save(filePath);
		}catch(Exception e){
			e.printStackTrace();
		}finally{
			try {
				doc.close();
			} catch (IOException e) {
				e.printStackTrace();
			}
			System.out.println("fin");
		}

	}