How to Batch Convert Powerpoint / Impress Slides (PPT, PPTX, ODP) to JPG Using LibreOffice Or OpenOffice

We all know that LibreOffice can export to PDF (it’s built-in). Awesome. But what about JPEG? Sure. It can do that. But when you export as JPEG, it only saves one slide. Well, the trick is actually to export as an HTML document. Then it can batch convert all slides. You might have to delete extra html files, but at least you don’t have to use Micro$oft Office. Cheers.