I have noticed that my R7 Rhino PDFs size are larger comparing to similar drawings that I did back in R6. A random Arch D arctic details elevation sheet was only about 1.6M back in R6, now is easily 3.5M and above. I tried to lower the res from 600 to 150 but the file size increased instead. Are there any other setting options I can do to make the PDFs lighter in size? Anything in the Display Modes that I should try?