create or replace procedure PDFWatermark_test
  is
  l_blob_60 blob;
  l_blob_70 blob;
  l_blob_114 blob;
begin
  select t.blob_file
    into l_blob_60
  from store_blob_tk t
  where t.filename = 'plpdf_package-v170.pdf';
  
  select t.blob_file
    into l_blob_70
  from store_blob_tk t
  where t.filename = '1-5.pdf';  
  
  dbms_lob.createtemporary(l_blob_114,TRUE);  
  
  l_blob_114 := plpdf_toolkit.PDFWatermark(
    p_inputfile => l_blob_60,
    p_overlayinputfile => l_blob_70
    );

  delete from store_blob_tk where id = 114;
  insert into store_blob_tk 
    (id,blob_file,filename,desctext) 
    values 
    (114,l_blob_114,'PDFWatermark.pdf','id:60 + id:70 PDFWatermark');
  commit;    
end;  
/