Re: smartforms output in pdf format

No you can't, It has to be deal with outside of the SMARTFORMS. 

There are several steps.

Before everything, your needs the following variables:

  DATA:ls_control_param TYPE ssfctrlop.

  DATA:ls_composer_param TYPE ssfcompop.

  DATA:ls_job_output_info TYPE ssfcrescl.

  DATA:lt_job_output_info TYPE TABLE OF ssfcrescl WITH HEADER LINE.

  DATA: lt_pdf TYPE STANDARD TABLE OF tline.

  DATA: lt_docs TYPE STANDARD TABLE OF docs.

  DATA: l_file_size TYPE i.

1) SSF_FUNCTION_MODULE_NAME

   To get the smartforms' function model

CALL FUNCTION 'SSF_FUNCTION_MODULE_NAME'

    EXPORTING

      formname           = p_frm

    IMPORTING

      fm_name            = fm_name

    EXCEPTIONS

      no_form            = 1

      no_function_module = 2

      OTHERS             = 3.

OPTIONAL STEP:

   open the connection for pool

  control_parameters-no_dialog = 'X'.

   control_parameters-preview   = 'X'.

  control_parameters-getotf = 'X'.

  control_parameters-no_open   = 'X'.

  control_parameters-no_close  = 'X'.

  CALL FUNCTION 'SSF_OPEN'

EXPORTING

   control_parameters = control_parameters

"  mail_appl_obj      = appl_object_id

  " mail_recipient     = recipient_id

  " mail_sender        = sender_id

EXCEPTIONS

   formatting_error   = 1

   internal_error     = 2

   send_error         = 3

   user_canceled      = 4

   OTHERS             = 5.

2) call the function model via the first step.

  CALL FUNCTION fm_name

      EXPORTING

        control_parameters = control_parameters

*        output_options     = ls_composer_param

*        user_settings     = ''

        otry = ''

      IMPORTING

*     DOCUMENT_OUTPUT_INFO       =

        job_output_info    = ls_job_output_info

      TABLES

        gt_likp = gt_likp[]

        gt_lips = gt_lips[]

       EXCEPTIONS

           formatting_error   = 1

           internal_error     = 2

           send_error         = 3

           user_canceled      = 4.

OPTIONAL STEP:

      CALL FUNCTION 'SSF_CLOSE'

        IMPORTING

          job_output_info  = ls_job_output_info

        EXCEPTIONS

          formatting_error = 1

          internal_error   = 2

          send_error       = 3

          OTHERS           = 4.

3)  Get filename

  CALL METHOD cl_gui_frontend_services=>file_open_dialog

    EXPORTING

      default_extension = 'PDF'

      default_filename  = '*.PDF'

      file_filter       = 'PDF Files (*.PDF)'

      multiselection    = ' '

    CHANGING

      file_table        = l_it_filetable

      rc                = l_result.