Hi Hans, hi all,

I think, that recent context has a problem with scaling included pdf files.
My minimal file:

\startMPpage
draw externalfigure "cow.pdf" ;
\stopMPpage

The resulting pdf is, as the original, 97x70.6 mm, all ok.

If I try to scale to the original size, i get arithmetic overflow error.

\startMPpage
draw externalfigure "cow.pdf" xscaled 97mm yscaled 70.6mm ;
\stopMPpage


Whe i scale it down, the pdf gets really big.

\startMPpage
draw externalfigure "cow.pdf" xscaled 27.5mm yscaled 20mm ;
\stopMPpage

results in a pdf with width of 4.938,8 mm and height of 2.612,3 mm.

I tested with recent context and luatex under windows 64 and linux-armhf.