public static void main(String[] args) throws Exception {
		String testFile = "testdata/test.docx";
		String targetFile = "testdata/test_c.docx";
		String image = "./testdata/Desert.jpg";
		
		InputStream is = null;
		OutputStream os = null;
		
		try {
			is = new FileInputStream(testFile);
			os = new FileOutputStream(targetFile);
			
			CustomXWPFDocument doc = new CustomXWPFDocument(is);
			int count = 0;
			for( XWPFParagraph para : doc.getParagraphs()){
				List<XWPFRun> runs = para.getRuns();
				for( XWPFRun run : runs ){
					List<CTDrawing> drawings = run.getCTR().getDrawingList();
					
					int size = drawings.size();
					for( int i = 0 ; i < size ; i++ ){
						CTPositiveSize2D ps2d = drawings.get(0).getInlineList().get(0).getExtent();
						String blipId = addPictureData(image, doc);
						doc.createPicture(run.getCTR(), 
								blipId, doc.getNextPicNameNumber(XWPFDocument.PICTURE_TYPE_PNG), 
								ps2d.getCx(), ps2d.getCy());
						
						run.getCTR().removeDrawing(0);
						
						count++;
					}
				}
			}
			doc.write(os);
			
			System.out.println("Replace " + count + " image(s).");
		} finally {
			Cleaner.close(is);
			Cleaner.close(os);
		}
	}

	private static String addPictureData(String image, CustomXWPFDocument doc)
			throws FileNotFoundException, InvalidFormatException {
		InputStream images = null;
		try {
			images = new FileInputStream(image);
			return doc.addPictureData(images, XWPFDocument.PICTURE_TYPE_JPEG);
		} finally {
			Cleaner.close(images);
		}
	}