Fujitsu fi-6000NS Operator's Manual page 226

HINT
200
During the scan, the following screen is shown.
The file size is shown in units of 10KB on the right of the screen.
If "High Compression for Color PDF" has been selected, the pre-compression
file size is shown.
Note that because the final output file has not been created yet, the actual file
size may differ from the estimated value shown.
Also note that skipped blank pages are not included in the total file size page
count.
Total file size of
scanned data