/* manually assemble a new image package part*/
OPCPackage opcPckg = doc.getPackage();
XWPFRelation jpgRelation = XWPFRelation.IMAGE_JPEG;
PackagePartName partName = PackagingURIHelper.createPartName(jpgRelation.getDefaultFileName().replace('#', '2'));
PackagePart newImagePart = opcPckg.createPart(partName, jpgRelation.getContentType());
byte[] nature1 = XWPFTestDataSamples.getImage("abstract4.jpg");
OutputStream os = newImagePart.getOutputStream();
os.write(nature1);
os.close();
XWPFHeader xwpfHeader = doc.getHeaderList().get(0);