This can absolutely be done programmatically. I just added the ability to do that using PowerPoint for Windows yesterday in my uv/python tool `markdown-pptx`. Codex added the functionality in less than 5 minutes.
For those that are interested, this inspired me to create a tool just for exporting images and PDFs of Word, Excel, and PowerPoint files. Check out the repo below, or if you have uv installed just run `uvx office-export skill install` or `uvx office-export --help` to check it out.
It uses Office for Windows, so it is Windows only. I don't currently have access to a Mac machine, so I can't build in Mac support yet.
Thanks for sharing, now im wondering if they did in fact grant my wish since I messed with this in January. Im lucky my job does not require me to make any pptx presentations.
https://github.com/pseudosavant/markdown-pptx/