Chatbot with Dialogflow

There could be a variety of approaches.

This sample is depending on queues to pass the query data to the Robot, so here is a proposal:

1. your chat frontend needs to support file uploads of course
2. the file could then be saved on a share storage (blob storage, shared path, etc...)
3. when pushing the queue item that will handle the intent, the pdf reference (id, filename/path, depending on the storage solution) can be included in the queue item
4. the robot retrieves the queue item, and uses the reference to access the PDF file for processing

The details of the implementation will heavily depend on the technical choices you make for both your frontend and storage solution.

Best regards,

Quentin