AI answer:
I wasn't able to find a direct answer to your question showing how to combine PDF support with multi-turn chat functionality in the provided documentation. While we have examples of both PDF support 1 and multi-turn conversations 2 separately, combining them would require additional guidance not present in the current documentation. You can get more help at Github or Support Center.

My question:
Well, if I were to combine both approaches, I would also have to send the PDF each time. That would be quite an overhead and would also not make sense in terms of processing. I don't think Claude does it that way either. Is there another way to send the PDF context?