What conversion recovers automatically
A PPTX conversion yields the title and body text of every slide in heading order, speaker notes where they exist, table content, and the deck's outline as a heading tree. That alone makes the deck searchable and quotable — a support engineer can find the pricing slide from 2024 instead of re-asking the team. MarkItDown Online keeps slide order as heading hierarchy and exports tables as Markdown tables, so the structure is ready for a knowledge base or an AI context window.
The ten-minute enrichment pass
For each deck, open the converted Markdown and do three things. First, turn each section of bullets into one or two complete sentences that state the claim and the reason — bullets almost always drop the because. Second, move speaker notes under the section they belong to, since they usually contain the numbers and caveats the slides omit. Third, add a front-matter-style header line naming the deck, the date, and the presenter. Ten minutes per deck converts a skeleton into a document a newcomer can actually read.
Batching the library
For a folder of legacy decks, run the batch conversion first and triage the outputs: decks with rich speaker notes need almost no editing, decks with bare bullets are candidates for a quick enrichment pass or for retirement. The batch preview's heading tree lets you judge a deck's completeness in seconds, and the validation gate flags decks that converted poorly — usually because they were secretly images, which the PDF-style OCR path now handles. Questions: sapsap@qq.com.