Send smartform as PDF attachment through email

REPORT  ztest_smartform.
DATA: i_otf TYPE itcoo OCCURS 0 WITH HEADER LINE,
      i_tline TYPE TABLE OF tline WITH HEADER LINE,
      i_receivers TYPE TABLE OF somlreci1 WITH HEADER LINE,
      i_record LIKE solisti1 OCCURS 0 WITH HEADER LINE,*     Objects to send mail.
      i_objpack LIKE sopcklsti1 OCCURS 0 WITH HEADER LINE,
      i_objtxt LIKE solisti1 OCCURS 0 WITH HEADER LINE,
      i_objbin LIKE solisti1 OCCURS 0 WITH HEADER LINE,
      i_reclist LIKE somlreci1 OCCURS 0 WITH HEADER LINE,*     Work Area declarations
      wa_objhead TYPE soli_tab,
      w_ctrlop TYPE ssfctrlop,
      w_compop TYPE ssfcompop,
      w_return TYPE ssfcrescl,
      wa_doc_chng TYPE sodocchgi1,
      w_data TYPE sodocchgi1,
      wa_buffer TYPE string, "To convert from 132 to 255
*     Variables declarations
      v_form_name TYPE rs38l_fnam,
      v_len_in LIKE sood-objlen,
      v_len_out LIKE sood-objlen,
      v_len_outn TYPE i,
      v_lines_txt TYPE i,
      v_lines_bin TYPE i.*Get function module form smart form
CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
  EXPORTING
    formname           = 'ZSMARTFORMS_TEST1'
  IMPORTING
    fm_name            = v_form_name
  EXCEPTIONS
    no_form            = 1
    no_function_module = 2
    OTHERS             = 3.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
  WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.*Set control parameters and output options
w_ctrlop-getotf = 'X'.
w_ctrlop-no_dialog = 'X'.
w_compop-tdnoprev = 'X'.CALL FUNCTION v_form_name
  EXPORTING
    control_parameters = w_ctrlop
    output_options     = w_compop
    user_settings      = 'X'
  IMPORTING
    job_output_info    = w_return
  EXCEPTIONS
    formatting_error   = 1
    internal_error     = 2
    send_error         = 3
    user_canceled      = 4
    OTHERS             = 5.
IF sy-subrc <> 0.
  MESSAGE ID sy-msgid TYPE sy-msgty NUMBER sy-msgno
  WITH sy-msgv1 sy-msgv2 sy-msgv3 sy-msgv4.
ENDIF.*Covert the OTF data returned to PDF format
i_otf[] = w_return-otfdata[].CALL FUNCTION 'CONVERT_OTF'
  EXPORTING
    format                = 'PDF'
    max_linewidth         = 132
  IMPORTING
    bin_filesize          = v_len_in
  TABLES
    otf                   = i_otf
    lines                 = i_tline
  EXCEPTIONS
    err_max_linewidth     = 1
    err_format            = 2
    err_conv_not_possible = 3
    OTHERS                = 4.
IF sy-subrc <> 0.
ENDIF.LOOP AT i_tline.
  TRANSLATE i_tline USING '~'.
  CONCATENATE wa_buffer i_tline INTO wa_buffer.
ENDLOOP.TRANSLATE wa_buffer USING '~'.
DO.
  i_record = wa_buffer.
  APPEND i_record.
  SHIFT wa_buffer LEFT BY 255 PLACES.
  IF wa_buffer IS INITIAL.
    EXIT.
  ENDIF.
ENDDO.* Attachment
REFRESH:  i_reclist,
          i_objtxt,
          i_objbin,
          i_objpack.CLEAR     wa_objhead.
i_objbin[] = i_record[].* Create Message Body Title and Description
i_objtxt = 'test with pdf-Attachment!'.APPEND i_objtxt.DESCRIBE TABLE i_objtxt LINES v_lines_txt.READ TABLE i_objtxt INDEX v_lines_txt.
wa_doc_chng-obj_name = 'smartform'.
wa_doc_chng-expiry_dat = sy-datum + 10.
wa_doc_chng-obj_descr = 'smartform'.
wa_doc_chng-sensitivty = 'F'.
wa_doc_chng-doc_size = v_lines_txt * 255.
* Main Text
CLEAR i_objpack-transf_bin.
i_objpack-head_start = 1.
i_objpack-head_num = 0.
i_objpack-body_start = 1.
i_objpack-body_num = v_lines_txt.
i_objpack-doc_type = 'RAW'.APPEND i_objpack.* Attachment (pdf-Attachment)
i_objpack-transf_bin = 'X'.
i_objpack-head_start = 1.
i_objpack-head_num = 0.
i_objpack-body_start = 1.
DESCRIBE TABLE i_objbin LINES v_lines_bin.READ TABLE i_objbin INDEX v_lines_bin.
i_objpack-doc_size = v_lines_bin * 255 .
i_objpack-body_num = v_lines_bin.
i_objpack-doc_type = 'PDF'.
i_objpack-obj_name = 'smart'.
i_objpack-obj_descr = 'test'.APPEND i_objpack.CLEAR i_reclist.
i_reclist-receiver = 'mkumardas@deloitte.com'.
i_reclist-rec_type = 'U'.APPEND i_reclist.CALL FUNCTION 'SO_NEW_DOCUMENT_ATT_SEND_API1'
  EXPORTING
    document_data              = wa_doc_chng
    put_in_outbox              = 'X'
    commit_work                = 'X'
  TABLES
    packing_list               = i_objpack
    object_header              = wa_objhead
    contents_bin               = i_objbin
    contents_txt               = i_objtxt
    receivers                  = i_reclist
  EXCEPTIONS
    too_many_receivers         = 1
    document_not_sent          = 2
    document_type_not_exist    = 3
    operation_no_authorization = 4
    parameter_error            = 5
    x_error                    = 6
    enqueue_error              = 7
    OTHERS                     = 8.
IF sy-subrc <> 0.
  WRITE:/ 'Error When Sending the File', sy-subrc.
ELSE.
  WRITE:/ 'Mail sent'.
ENDIF.