Convert PDF to string

[Former Member]

Hello everybody,

I have a BSP Application which handles PDF Documents. Now I want download a PDF Dokument from the Applikation Server to the Workstation. I have a HTML Link which is linked to the PDF File. If I click on the link I want to get the binary data of the PDF File in a string.

I don't have any Idea to solve this problem. Can anybody help me?

Kind regards

Axel

[athavanraja]

do you mean when user clicks the link, you have to read the PDF data from application server and save it in the local work station?

<i>If I click on the link I want to get the binary data of the PDF File in a string</i>.

why do you want to do that?

Regards

Raja

[Former Member]

Hell Raja,

i have a bsp Applikation which handles with PDF Files. I have a bsp-site in which shows a Link to an PDF File, that is on the application server. If I click on the link a standard popup with the bittons Open, Save, Cancel and Display comes up. The PDF File should not be directly opened in the browser if I click on the link. In "normal" Web Applications I have to modify the HTTP response and put the binray data of the PDF File into the HTTP response. I find a link (/people/thomas.jung3/blog/2004/08/09/bsp-download-to-excel-in-unicode-format) in the SDN which describe it with a Excel sheet, but for PDF's it did not work.

Kind regards

Axel

[athavanraja]

you got the right link.

just change the APP_TYPE attributes discussed in the weblog to <b>application/pdf</b> and it should work.

if it doesnt, kindly tell us what error you are getting.

also check this weblog , this may be of useful to you.

/people/sap.user72/blog/2004/11/10/bsphowto-generate-pdf-output-from-a-bsp

Regards

Raja

[Former Member]

sorry that I forgot to tell you what kind of error I get. I get the error (there is an mistake in the PDF File)when I want to open the downloaded PDF file on my local PC. I develop following code to download the PDF:

APP_TYPE = 'APPLICATION/PDF'.

response->set_header_field( name = 'content-type' value = APP_TYPE ).

response->delete_header_field( name = if_http_header_fields=>expires ).

response->delete_header_field( name = if_http_header_fields=>pragma ).

response->set_header_field( name = 'content-disposition' value =

'attachment; filename = webforms.pdf' ).

OPEN DATASET pdfLink FOR INPUT IN BINARY MODE.

DO.

READ DATASET pdfLink INTO is_pdf.

IF sy-subrc = 0.

CONCATENATE Lv_STRING is_pdf INTO Lv_STRING.

ELSE.

EXIT.

ENDIF.

ENDDO.

CLOSE DATASET pdfLink.

CALL FUNCTION 'SCMS_STRING_TO_XSTRING'

EXPORTING

text = lv_string

MIMETYPE = 'APPLICATION/PDF;'

IMPORTING

BUFFER = l_xstring

lv_len = xstrlen( l_xstring ).

response->set_data( data = l_xstring length = lv_len ).

navigation->response_complete( ).

The code is the same as in the log /people/thomas.jung3/blog/2004/08/09/bsp-download-to-excel-in-unicode-format

But it did not work.

Kind regards

Axel

[athavanraja]

you also need to delete the cache control.

response->set_data( file_content ).
  response->set_header_field( name  = if_http_header_fields=>content_type
                              value = file_mime_type ).
  response->delete_header_field( name = if_http_header_fields=>cache_control ).
  response->delete_header_field( name = if_http_header_fields=>expires ).
  response->delete_header_field( name = if_http_header_fields=>pragma ).
  navigation->response_complete( ). " signal that response is complete

Regards

Raja

[Former Member]

Now I have also delete the cache control, but it did not work. If I want to open the pdf, after the download process, I get the message that the acrobat reader could not open the file because it is defect.

Regards

Axel

[athavanraja]

looks like there is a problem with the way you build the binary string.

<i>OPEN DATASET pdfLink FOR INPUT IN BINARY MODE.

DO.

READ DATASET pdfLink INTO is_pdf.

IF sy-subrc = 0.

CONCATENATE Lv_STRING is_pdf INTO Lv_STRING.

ELSE.

EXIT.

ENDIF.

ENDDO.

CLOSE DATASET pdfLink.</i>

change the concatenate statement to add BYTE mode.

CONCATENATE Lv_STRING is_pdf INTO Lv_STRING IN BYTE mode.

Regards

Raja

[Former Member]

Hello Raja,

thank you for your help. Now it works fine.

Kind regards

Axel