feat(pptx): support image description with LLM for pptx files #306
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This PR adds support for creating image descriptions with LLMs for images in pptx files.
The functionality is optional, and will be enabled with an
llm_model
andllm_client
parameter configured. If those are not provided, markitdown will default to using the imagealt_text
for the descriptionExample
Input slide (with image on right-hand side)
Output
Code example
Output
Note the LLM-generated description for the image on Slide 2.
The original slides can be found here.