I’d be interested in hearing why this other photographer thinks there’s a quality benefit to using Acrobat in between ID and PS, rather than just opening the PDF directly in PS. I also wonder what she would think of eburden’s suggestion to use that import script, which sounds like a neat approach if you’re on a Mac and able to use applescript. I’m not, and most of my ID documents have text on the images anyway.
David mentioned Print Tool, which indicates that he is on a Mac. Despite that I’d like to persist with this 8 vs 16 bit on Win thing, because there’s a risk that I might learn something. I said that the Windows printing pipeline is 8-bit because that seemed to be the received wisdom. You read it often and so I just accepted it. (I’m a Windows 7 holdout until the very EoL next January, and W10 may be different.) So I did a little research and found that an XPS print path was introduced in Vista and at that time extended back into XP, so it does seem to be the case that the capability to print 16 bit in Win has been around a long time. Something learnt already.
But as I read it, that isn’t a guarantee of 16 bit printing - the application and driver have to support it by using that particular print path. Canon has released XPS drivers (although there are reports of 16 bit causing CM issues). However I can’t see any evidence that Epson has. All the reports of their 16 bit drivers seem to be for OS X.
For the topic at hand, the question is whether QTR on Win supports 16 bit. The most recent set of release notes mentioning this issue was 126.96.36.199, which says:
!! Mac Users take NOTE !!
Major Upgrades to the Mac version of QTR Software:
8-bit and 16-bit image data supported – from app to driver.
The Windows implementation does not pass the data through
the print system like the Mac version does. So 16-bit data
changes noted above to not apply to the Windows version. However
QTR continues to use all 16-bits of a TIFF data file for
creating a print.
I don’t understand this - do you Walker? It reads to me like QTR on Win is not really 16 bit. If that’s the case then I’ve not seen any artifacts in gradients. Yes, you’re right, the PoP image doesn’t have any - I was thinking of other B&W test images that contain gradients.