CREATE OR REPLACE PROCEDURE grid_a4_10x10mm IS
-- grid
   ---------------
 
  l_blob BLOB;
 BEGIN
    Plpdf.init; -- initialize, without parameters means: page orientation: portrait, unit: mm, default page format: A4
    Plpdf.NewPage; -- begin a new page, without parameters means: page orientation: default (portrait)
    FOR l_i IN 1..20 LOOP
	  Plpdf.DrawLine(l_i*10,0,l_i*10,297);
	END LOOP;
	
	FOR l_i IN 1..29 LOOP
	  Plpdf.DrawLine(0,l_i*10,210,l_i*10);
	END LOOP;
	
    Plpdf.SendDoc(l_blob); -- create content
	
	-- print
	/*
	owa_util.mime_header('application/pdf');
        htp.p('Content-Length: ' || dbms_lob.getlength(l_blob)); 
        owa_util.http_header_close; 	
        wpg_docload.download_file(l_blob);
	*/
    
	-- or store
	INSERT INTO STORE_BLOB (blob_file, created_date) VALUES (l_blob, SYSDATE);
	COMMIT;
 END;
/