> On Sep 6, 2017, at 12:44 AM, wamwagner at comcast.net wrote:
> OK. Then you are saying that a scanner implementing PDF/Raster satisfies the IPP Scan requirement that “Scan Services MUST support generating Documents conforming to Document management — Portable document format — Part 1: PDF 1.7 [ISO32000] " ? In that case, one wonders why TWAIN /PDF would bother generating a new spec.
> Thanks, BillW.
PWG Raster is a raster-only subset of PDF 1.7/ISO 32000-1. A program that can consume PDF 1.7 can consume PDF Raster, but the reverse is not necessarily true since PDF 1.7 includes other things like text, vector graphics, etc.
(now, I can't answer the "why" for why they didn't just adopt PDF/is, but perhaps they just were not aware of it...)
Michael Sweet, Senior Printing System Engineer