Html db to display pdf files saved as blob in the data base

Hi all,
I have a DB page to call next page to display pdf files.
A procedure is being called when the link is clicked on the first page.
However, the procedure output a juck code insteand the pdf files. Please help.
Thanks,
n_length number;
n_image BLOB;
begin
select note_image, dbms_lob.getlength(note_image)
into n_image, n_length
from n100_notes where note_id = nid;
owa_util.mime_header('application/pdf');
htp.p('Content-length: ' || n_length);
wpg_docload.download_file(note_image );

we use:
owa_util.mime_header('application/pdf',false);
htp.p('Content-Length: ' || dbms_lob.getlength(l_blob));
owa_util.http_header_close;
wpg_docload.download_file(l_blob);
see plpdf.com
LL

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