Google's own hosts can't name its documented 64MB PDF crawl limit

Google search advocates Martin Splitt and John Mueller couldn’t recall Googlebot’s PDF file-size cap on their own podcast, Search Off the Record, despite the 64MB figure appearing in Google’s own crawler documentation, per PPC Land. The two confirmed that converted PDFs rank in AI Overviews and AI Mode the same as standard HTML pages, but said Google refetches PDF files far less often than it does HTML — Mueller’s advice is to give an updated PDF a new filename rather than edit it at the same URL.