Adding the page number in the sources

[samichaignonmejai]

Hey, I found out that in the output of doc.metadata was : {"source":"/Users/../doc.pdf","pdf_numpages":1945,"loc":{"lines":{"from":74528,"to":74551}}}>
I wonder if it is possible to extract directly the page number instead of the lines refering to a particular chunck of test.
I tried my best but I can't understand where is the "loc" being built in the code and how to modify it. If anyone has an idea on how to manage it, let me know !

[jeffchuber]

FYI I think this is LangChain.js question.