Our report required the ability to save or print a bundle of PDF forms, each provided as an entry in an internal table. Initially, we attempted to use the standard approach with the function module FP_GET_PDF_TABLE. However, we encountered limitations specifically, FP_JOB_OPEN was unable to handle the necessary parameters for bundled output in our scenario.
As we did not have the option to modify the Adobe forms themselves or apply relevant SAP Notes, we explored an alternative solution. By leveraging the CL_RSPO_PDF_MERGE class, we successfully implemented PDF merging at runtime. This approach provided a stable and effective way to combine individual PDFs into a single document, ready for download or direct printing.
This is a sample code that provide this functionality:
TYPES: ty_documents_tab TYPE STANDARD TABLE OF ty_document WITH DEFAULT KEY.
FORM generate_merged_pdf USING pt_documents TYPE ty_documents_tab.
DATA: lt_binary_pdf TYPE TABLE OF x255,
lt_merged_pdf TYPE TABLE OF x255,
lv_xstring TYPE xstring,
lv_merged_xstring TYPE xstring,
lv_filename TYPE string,
lv_path TYPE string,
lv_fullpath TYPE string,
ls_formoutput TYPE fpformoutput,
ls_joboutput TYPE sfpjoboutput.
*------------------------------------------------------------
* Field symbols
*------------------------------------------------------------
FIELD-SYMBOLS: <fs_document> TYPE ty_document.
*------------------------------------------------------------
* form and doc parametars
*------------------------------------------------------------
DATA: l_fm_name TYPE rs38l_fnam,
fp_docparams TYPE sfpdocparams,
lv_formname TYPE fpname.
*------------------------------------------------------------
* Set Adobe Form output parameters
*------------------------------------------------------------
* Initialize PDF merger class
*------------------------------------------------------------
TRY.
DATA(lo_merger) = NEW cl_rspo_pdf_merge( ).
CATCH cx_rspo_pdf_merge INTO DATA(lo_error).
MESSAGE 'PDF merger initialization failed.' TYPE 'E'.
RETURN.
ENDTRY.
*------------------------------------------------------------
* Open Adobe Forms spool job
*------------------------------------------------------------
CALL FUNCTION 'FP_JOB_OPEN'
CHANGING
ie_outputparams = fp_outputparams
EXCEPTIONS
OTHERS = 1.
*------------------------------------------------------------
* Loop through entries and generate individual PDFs
*------------------------------------------------------------
LOOP AT lt_documents ASSIGNING <fs_document>.
*------------------------------------------------------------
* Set form name
*------------------------------------------------------------
lv_formname = 'Z_YOUR_PDF_FORM'.
*------------------------------------------------------------
* Get generated function module name
*------------------------------------------------------------
CALL FUNCTION 'FP_FUNCTION_MODULE_NAME'
EXPORTING
i_name = lv_formname
IMPORTING
e_funcname = l_fm_name.
*------------------------------------------------------------
* Set form parameters
*------------------------------------------------------------
CLEAR fp_docparams.
fp_docparams-langu = sy-langu.
fp_docparams-country = 'XX'.
*------------------------------------------------------------
* Call form generation
*------------------------------------------------------------
CALL FUNCTION l_fm_name
EXPORTING
/1bcdwb/docparams = fp_docparams
i_data = <fs_document>
IMPORTING
/1bcdwb/formoutput = ls_formoutput
EXCEPTIONS
OTHERS = 1.
*------------------------------------------------------------
* Add document to merger
*------------------------------------------------------------
lv_xstring = ls_formoutput-pdf.
lo_merger->add_document( lv_xstring ).
ENDLOOP.
*------------------------------------------------------------
* Close Adobe Forms spool job
*------------------------------------------------------------
CALL FUNCTION 'FP_JOB_CLOSE'
IMPORTING
e_result = ls_joboutput
EXCEPTIONS
OTHERS = 1.
*------------------------------------------------------------
* Merge all added PDF documents
*------------------------------------------------------------
DATA lv_rc TYPE i.
lo_merger->merge_documents(
IMPORTING
merged_document = lv_merged_xstring
rc = lv_rc ).
CHECK lv_rc = 0.
*------------------------------------------------------------
* Convert final merged XSTRING to binary
*------------------------------------------------------------
CALL FUNCTION 'SCMS_XSTRING_TO_BINARY'
EXPORTING
buffer = lv_merged_xstring
TABLES
binary_tab = lt_merged_pdf.
*------------------------------------------------------------
* Prompt user for file location
*------------------------------------------------------------
CALL METHOD cl_gui_frontend_services=>file_save_dialog
CHANGING
filename = lv_filename
path = lv_path
fullpath = lv_fullpath
EXCEPTIONS
OTHERS = 1.
IF sy-subrc <> 0.
MESSAGE 'File path selection cancelled.' TYPE 'I'.
RETURN.
ENDIF.
*------------------------------------------------------------
* Download the merged PDF to selected path
*------------------------------------------------------------
CALL FUNCTION 'GUI_DOWNLOAD'
EXPORTING
filename = lv_fullpath
filetype = 'BIN'
TABLES
data_tab = lt_merged_pdf.
ENDFORM.
In addition, parameters can be assigned to fp_outputparams to suppress the print dialog or to prefill predefined values, enabling a more streamlined and user-friendly output process. If no parameters are specified, the system will apply the default print settings.
