What types of content can Claude read besides images?	PDF documents.
What property must be changed in the code structure to indicate the input is a PDF?	Change `image` to `document`.
What value must the `format` property be set to when processing a PDF?	PDF.
When specifying the file name for a PDF, how should the extension be handled?	The name should be provided without the extension (e.g., 'earth' instead of 'earth.pdf').
What is the suggested new variable name for the file bytes when switching from image processing to PDF processing?	file bytes.
What advanced feature can be combined with PDF reading to improve context?	Citations.
What is the first citation category introduced in the transcript?	Cite from Commons.