Re: NR pdf is larger with current git by 15%

[Werner LEMBERG]

>> > Ghostscript seems to need `-sDEVICE=pdfwrite` to produce the PDF
>> > we expect.

OK.

>> > Is the device specifying way on the new method (without
>> > `-sDEVICE=pdfwrite`) documented by Ghostscript documents?  If
>> > not, it is not a bug in my humble opinion.
>> 
>> I've found the documented way to specify Ghostscript devices
>> without `-sDEVICE=pdfwrite`.  It is using the operator
>> `selectdevice`.

Thanks for investigating.  The main question remains why gs produces
suboptimal results without `selectdevice`.

> Interesting. I had mostly looked at
> https://www.ghostscript.com/doc/Language.htm which lists setdevice,
> but not selectdevice. Do you happen to know what's making the
> difference here?  These Ghostscript internals are funny to work
> with, being half-documented and partly standardized...

I agree.


    Werner