Can I automatically print attachments that are embedded in the PDF

There is no such feature to automatically print files embedded within a PDF file.

Conceivably one could write a plug-in to do this, but “out-of-the-box” this is not possible. Note that such a feature would not be particularly easy to implement. For example, for an embedded Word (i.e., .doc or .docx file), such a plug-in would need to extract the file to a temporary location and invoke Microsoft Word with a command line specifying appropriate arguments. You would also need to determine whether to force a print dialog in Word or to accept defaults. This can get very complex very quickly.

We have learned over the years that is no such thing as anything “simple” when it comes to printing.

          - Dov