pptx

To convert HTML to PowerPoint slides, use an html-to-PPTX workflow that builds slides from HTML content, places charts and tables as placeholders, and visually validates layout and overflow to prevent corrupted presentations.

To safely edit existing PowerPoint files, unpack the OOXML package, modify the raw slide XML files directly, and repack them into a validated PPTX structure with automated overflow and validation safeguards to prevent corruption.

You can extract text and speaker notes from a PPTX file by converting the presentation content to markdown for review, or by unpacking the OOXML to inspect the raw XML for comments, layouts, and complex formatting.

The best way to map new content to a PowerPoint template is to extract the template text, generate thumbnail grids, create a slide inventory, outline the deck with slide-to-template mapping, then duplicate and reorder slides to replace text precisely.

PowerPoint presentations fail to open due to corrupted OOXML structures, which you can prevent by applying strict handling during PPTX generation, unpacking and editing XML safely, and using automated validation safeguards before saving the file.

Generating PPTX files from HTML requires specific dependencies including playwright, pptxgenjs, sharp, markitdown, LibreOffice, and poppler-utils to handle conversion, image processing, and visual validation workflows correctly.