This has been answered before (2010) but apparently the API has changed so much since then I can't seem to make it work in VB. I have been attempting to make the sdfdoc approach work, which since listed as #1, this must be the fastest and most efficient way to build a single list of fonts from the entire document?
Hi I updated that post to provide more obvious parsing code.
https://groups.google.com/d/msg/pdfnet-sdk/freax0rziak/OfbFIs_XAQAJ