ho fatto come mi hai detto tu,. ora dopo la chiamata al browser mi ritorna la scritta :

%PDF-1.3 3 0 obj <> endobj 4 0 obj <> stream 2 J 0.57 w BT /F1 16.00 Tf ET BT 31.19 794.57 Td (Hello Word!) Tj ET endstream endobj 1 0 obj <> endobj 5 0 obj <> endobj 2 0 obj <> >> endobj 6 0 obj << /Producer (FPDF for ASP v.1.01 beta by Lorenzo Abbati [www.aspxnet.it]) /CreationDate (D:20081012173732) >> endobj 7 0 obj << /Type /Catalog /Pages 1 0 R /OpenAction [3 0 R /FitH null] /PageLayout /OneColumn >> endobj xref 0 8 0000000000 65535 f 0000000204 00000 n 0000000387 00000 n 0000000009 00000 n 0000000087 00000 n 0000000291 00000 n 0000000475 00000 n 0000000601 00000 n trailer << /Size 8 /Root 7 0 R /Info 6 0 R >> startxref 704 %%EOF


....come devo continuare?

grazie mille e scusa.... :