code: public static PdfAction rendition(String file, PdfFileSpecification fs, String mimeType, PdfIndirectReference ref) throws IOException {
          PdfAction js = new PdfAction();
          js.put(PdfName.S, PdfName.RENDITION);
          js.put(PdfName.R, new PdfRendition(file, fs, mimeType));
          js.put(new PdfName("OP"), new PdfNumber(0));
          js.put(new PdfName("AN"), ref);
          return js;
       }
docs: Creates a Rendition action
  @param file
  @param fs
  @param mimeType
  @param ref
  @return a Media Clip action
  @throws IOException