I am building a query engine with

Hello, you can use the metadata. You should define the metadata when you build the nodes. Later you can just put after you get the response:

Show cited passages that were used to construct the response.
for node in streaming_response.source_nodes:
print(f"Metadata: {node.metadata}")

yes, I am asking with reader should i use to get page number which i can add to metadata

I think the pdf reader automatically splits by page and puts the page number in the metadata

Otherwise, you might have to write your own little loader to set the Metadata how you want

okay okay thanks, yeah found that