code: public static List<File> createTiffFiles(File imageFile, int index) throws IOException {
          return createTiffFiles(imageFile, index, false);
      }
docs: Creates a list of TIFF image files from an image file. It basically
  converts images of other formats to TIFF format, or a multi-page TIFF
  image to multiple TIFF image files.
  
  @param imageFile input image file
  @param index an index of the page; -1 means all pages, as in a multi-page
  TIFF image
  @return a list of TIFF image files
  @throws IOException