Convert Smartform to PDF format

Hello friends,
I have been looking so many threads regarding this topics in FORM PAINTING forum. every time it was ansered by the members of the community. to avoid this repeated postings again and again i am posting the code here. I hope this will be helpful for them
Summury: Converting the smartfrom to PDF is process of 3 simple steps.
• Calling the Smart form, then it returns the OTF data in Return.
• Converting the OTF data into required format using the Function Module CONVERT_OTF_2_PDF.
• Download the File
*&---------------------------------------------------------------------*
*& Report ZTEST_NREDDY_PDF
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*
REPORT ZTEST_NREDDY_PDF.
DATA: it_otf TYPE STANDARD TABLE OF itcoo,
it_docs TYPE STANDARD TABLE OF docs,
it_lines TYPE STANDARD TABLE OF tline,
st_job_output_info TYPE ssfcrescl,
st_document_output_info TYPE ssfcrespd,
st_job_output_options TYPE ssfcresop,
st_output_options TYPE ssfcompop,
st_control_parameters TYPE ssfctrlop,
v_len_in TYPE so_obj_len,
v_language TYPE sflangu VALUE 'E',
v_e_devtype TYPE rspoptype,
v_bin_filesize TYPE i,
v_name TYPE string,
v_path TYPE string,
v_fullpath TYPE string,
v_filter TYPE string,
v_uact TYPE i,
v_guiobj TYPE REF TO cl_gui_frontend_services,
v_filename TYPE string,
v_fm_name TYPE rs38l_fnam.
CONSTANTS c_formname TYPE tdsfname VALUE 'ZTEST'.
CALL FUNCTION 'SSF_GET_DEVICE_TYPE'
EXPORTING
i_language = v_language
i_application = 'SAPDEFAULT'
IMPORTING
e_devtype = v_e_devtype.
st_output_options-tdprinter = v_e_devtype.
*st_output_options-tdprinter = 'locl'.
st_control_parameters-no_dialog = 'X'.
st_control_parameters-getotf = 'X'.
*.................GET SMARTFORM FUNCTION MODULE NAME.................*
CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'
EXPORTING
formname = c_formname
IMPORTING
fm_name = v_fm_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.
*...........................CALL SMARTFORM............................*
CALL FUNCTION v_fm_name
EXPORTING
control_parameters = st_control_parameters
output_options = st_output_options
IMPORTING
document_output_info = st_document_output_info
job_output_info = st_job_output_info
job_output_options = st_job_output_options
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.
ELSE.
*.........................CONVERT TO OTF TO PDF.......................*
CALL FUNCTION 'CONVERT_OTF_2_PDF'
IMPORTING
bin_filesize = v_bin_filesize
TABLES
otf = st_job_output_info-otfdata
doctab_archive = it_docs
lines = it_lines
EXCEPTIONS
err_conv_not_possible = 1
err_otf_mc_noendmarker = 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.
*........................GET THE FILE NAME TO STORE....................*
CONCATENATE 'smrt' '.pdf' INTO v_name.
CREATE OBJECT v_guiobj.
CALL METHOD v_guiobj->file_save_dialog
EXPORTING
default_extension = 'pdf'
default_file_name = v_name
file_filter = v_filter
CHANGING
filename = v_name
path = v_path
fullpath = v_fullpath
user_action = v_uact.
IF v_uact = v_guiobj->action_cancel.
EXIT.
ENDIF.
*..................................DOWNLOAD AS FILE....................*
MOVE v_fullpath TO v_filename.
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
bin_filesize = v_bin_filesize
filename = v_filename
filetype = 'BIN'
TABLES
data_tab = it_lines
EXCEPTIONS
file_write_error = 1
no_batch = 2
gui_refuse_filetransfer = 3
invalid_type = 4
no_authority = 5
unknown_error = 6
header_not_allowed = 7
separator_not_allowed = 8
filesize_not_allowed = 9
header_too_long = 10
dp_error_create = 11
dp_error_send = 12
dp_error_write = 13
unknown_dp_error = 14
access_denied = 15
dp_out_of_memory = 16
disk_full = 17
dp_timeout = 18
file_not_found = 19
dataprovider_exception = 20
control_flush_error = 21
OTHERS = 22.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDIF.