Hi,

There are probably not that many mkii users but just in case you use it to make something that you include in mkiv / lmtx or similar cases, the current version of pdftex (tl 2025) has some issue:

\starttext
\startTEXpage
    this is a\externalfigure[t:/sources/cow.pdf][height=20pt]cow
\stopTEXpage
\stoptext

Basically anything at the bottom of a tight page setup with no depth, in the case of text it can be a whatsit, or rule mixed in, spaces don't matter, will trigger this.

It relates to "using space in the perspective of tagged pdf" features introduced in the engine that also interfere when that feature is not enables. We don't set up this feature in mkii but the issue occurs independent of it being set up.

As said, it's probably not that relevant for context users but I know that sometimes mkii is still used for imposition or independent graphics, like:

\starttext
\startTEXpage
    \startMPcode
        draw textext("xxx");
        draw unitcircle scaled 1cm ;
        draw textext("xxx") shifted (1cm,0) ;
    \stopMPcode
\stopTEXpage
\stoptext

So again, no depth, bottom of page, text mixed with non-text. This issue actually might impact mptopdf in combination with pdftex.

Hans

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                                          Hans Hagen | PRAGMA ADE
              Ridderstraat 27 | 8061 GH Hasselt | The Netherlands
       tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl
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