pptx-generator

Create a new pptxgen instance, set the layout to LAYOUT_16x9, add slides with text, shapes, charts, and images, then call writeFile with the output filename. Each slide can be a separate JS module exporting a synchronous createSlide function compiled by a central script.

Run python -m markitdown presentation.pptx after installing markitdown with the pptx extra. This extracts all slide text into Markdown, which is useful for content review, QA checks, and detecting leftover placeholder text.

Copy the template, extract text with markitdown to map placeholders, unpack the PPTX into XML with Python's zipfile, modify slide XML files directly, then repack. Update Content_Types.xml and presentation.xml when adding or removing slides.

Corruption usually comes from using # prefixes in hex colors, encoding opacity in 8-character hex strings, reusing option objects across calls, or using async createSlide functions. Use 6-character hex without # and the opacity property instead.

Yes, PptxGenJS supports BAR, LINE, PIE, DOUGHNUT, SCATTER, BUBBLE, and RADAR charts via addChart, plus tables via addTable with merged cells, custom borders, and per-cell styling options.

Yes, set fontFace to Microsoft YaHei for Chinese text and Arial, Georgia, or Calibri for English. System fonts are recommended for cross-platform compatibility since fonts are referenced by name, not embedded.