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Why Conference Organisers Ask for PPTX Slides and How to Convert HTML Decks

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Speakers who build talks in HTML tools like reveal.js or Slidev are often asked by organisers to supply PowerPoint files. Organisers want local files because venue PCs may have limited internet, quick switching between speakers matters, and archiving and review are simpler with one file per talk. Before converting, presenters should replace live demos, animations, and interactive charts with static fallbacks, and set a fixed 16:9 layout. A browser-based converter can then capture each slide's visual appearance into a PPTX file, which should be tested on a machine without custom fonts. Adding speaker notes and a closing slide with contact and source links helps the file remain useful after the event.

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