Thank all for your suggestion. I see it's better to merge the note and the pdfs later by desktop application, or copy the note's contents and paste to the pdf note. Just wish to have an option in Scannable like "choose where to export the pdfs".
I took a note in a meeting in Evernote. At the end of the meeting I got some documents. I used Scannable to scan these to pdfs and wish to export to Evernote. In my iphone how can I add the pdfs to the note of the meeting that I already took? Thanks a lot.