Adobe Acrobat Professional has an interesting function called
INVENTORY. It breaks down the storage of a PDF by type (embedded
fonts, graphics, stream, etc.). I would suspect this is possible with
PDFNet, but am not seeing storage size attributes. I am looking to
make a utility that provides size analysis, showing graphic
resolutions and storage size, to help us make better use of the
wonderful PDFTron Optimizer feature. One really needs some metrics to
use this wisely for any given application it would appear to me.

Has anyone done any work with reporting size breakdown via the
library? TIA for any hints?