Hello again, When providing an alt-text for images like so (which works for PDFs): \setupexternalfigures[location=default] \setupbackend[export=yes,xhtml=yes] \setupinteraction [state=start] \starttext \startchapter[title=Example] \startsection[title={Section}] \placefigure {} {\externalfigure[hacker.jpg][ label={Look, a $e^{\pi i}+1=0$ hacker!}] } \stopchapter \stoptext the figure becomes in the HTML export <div class="float figure method-here" id="aut-3"> <div class="floatcontent"><div class="image label-Look, a $e^{\\\\pi i}+1=0$ hacker!" id="export-example-image-1" image="export-example-image-1"><!--empty--></div></div> <div class="floatcaption"><div class="floatlabel figure">Figure </div><div class="floatnumber figure">1.1</div></div> </div> How do I turn this into an ALT text in the HTML? Or how do I have to provide the Alt text correctly? And what do I do about Alt texts that contain math? The \\\\pi looks a little strange… Thanks once again, Matthias