[NTG-context] page counter problem

[Taco Hoekwater]

Hi Alan,

> On 30 Sep 2020, at 12:50, Alan Bowen <bowenalan03 at gmail.com> wrote:
> 
> he page counter does not increase in the first iteration an PDf inclusion but seems to work properly after that. Have attached a sample file (69K) that will serve to show the problem—at least, on my machine.

It is not the iteration itself. Try with another pdf with more than 2 pages and you
will see that it happens in the first page(s).

The problem is that you are not giving ConTeXt a fair chance to update the page number,
because a series of \vbox to \paperheight {}’s cannot cleanly be broken into separate
pages. The solution is to use 

\dorecurse{\noffigurepages}
   {\vbox to \paperheight 
      		{\vskip-\dimexpr\headerheight+\headerdistance+\topspace\relax
      		 \hbox to \hsize
         {\hskip-\backspace
		\layeredtext[]
			[boffset=3pc]		
		{\red\userpagenumber}
		{\externalfigure[HannahBW.pdf][page=#1]}%
          \hss}%
    		\vss}\page
  }

where the extra \page command allows ConTeXt to properly process the page breaks.

Best wishes,
Taco