document-svg 2.0.2

Convert PDF, Word, Excel, PowerPoint, diagram and CAD files into one SVG per page, locally — a Rust library and the docsvg command
Documentation
<?xml version="1.0" encoding="UTF-8"?>
<tt xmlns="http://www.w3.org/ns/ttml"
    xmlns:ttp="http://www.w3.org/ns/ttml#parameter"
    xmlns:tts="http://www.w3.org/ns/ttml#styling"
    ttp:timeBase="media" xml:lang="en">
  <head>
    <styling>
      <style xml:id="emphasis" tts:fontWeight="bold"/>
    </styling>
    <layout>
      <region xml:id="lower" tts:origin="10% 80%" tts:extent="80% 15%"/>
    </layout>
  </head>
  <body>
    <div>
      <p xml:id="intro" begin="00:00:01.250" end="00:00:03.500" region="lower">Welcome <span style="emphasis">aboard</span>.<br/>安全な字幕</p>
      <p begin="3.5s" dur="1s">Literal &lt;script&gt; stays text.</p>
    </div>
  </body>
</tt>