excellent - not had a response to my ticket yet but that is great news, thanks for letting us know 

Logged with Google support (case #49833601 )- sent them this summary:Within the past 7 -14 days something has changed in regards to Google Doc PDF downloads when the document contains multiple photos. The change is that an excessively large PDF file ...

Getting same reporting from my team. One provided example is a report with 3 photos on it - PDF export is 34MB.