Filemaker gladly befuddled the existing container fields by making ALL of them interactive or graphic by choice of a button in the Inspector data tab at the bottom. I think they should have added two NEW container types to handle this problem so as to not confuse everyone... But remember that Filemaker Inc managed to create a data fiasco at Y2K by trying to decide what is best for us...
It would be so much easier on everyone and make for less complex code if there were separate container fields for graphics, pdfs, etc. But then so would real numbers, booleans, etc....
Thank you for your post, and I apologize for the late reply.
Please post the script you use to create the PDF file and/or Send Mail.