<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">I understand that one can include processing directives in the .tex file like <blockquote style="margin: 0 0 0 40px; border: none; padding: 0px;" class=""><div class="">% !TEX program = pdflatexmk</div></blockquote><div class=""><br class=""></div>I would like to study the documentation on such directives.<div class=""><br class=""></div><div class="">Where would be a good place to look?</div><div class=""><br class=""></div><div class="">(I use TeXShop 4.68 on MacOS Monterey 12.2)</div><div class=""><br class=""></div><div class="">Thanks!—Arthur Ogawa</div></body></html>