Automation library · Alerts and monitoring

Generate document summaries & Q&As from PDF/TXT with OpenAI

Started by another system calling it, and works across Google Sheets and Slack. It puts Azure OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 15 steps, 3 branches: a working afternoon to understand properly.

MediumCalls a model: Azure OpenAIRetrieval

Download free
15 stepsMedium: a working afternoon
3Branches: places the flow splits
0Loops or waits
2Services it connects to

The flow

Starts it 2Model 4Logic 5Service 4

The steps in the order they run, from what starts it.

  1. 1Receive Document Upload via WebhookWebhookStarts it
  2. 2Parse AI Summary and Q&A into Structured JSONOutput Parser StructuredModel
  3. 3Provide LLM Engine for Document AnalysisLm Chat Azure Open AiModel
  4. 4Store AI Memory for Document Analysis SessionMemory Buffer WindowModel
  5. 5Check If Uploaded File Is PDFIfLogic
  6. 6Check If Uploaded File Is TXTIfLogic
  7. 7Generate Summary & Q&A Using AIAgentModel
  8. 8Extract Text from PDF FileExtract From FileService
  9. 9Extract Text from TXT FileExtract From FileService
  10. 10Validate AI Output Before ProcessingIfLogic
  11. 11Unwrap AI Output ObjectCodeLogic
  12. 12Log Invalid AI Output to Google SheetGoogle SheetsService
  13. 13Prepare Final Response PayloadCodeLogic
  14. 14Send Final Summary & Q&A Response to WebhookRespond To WebhookStarts it
  15. 15Send Summary Preview to SlackSlackService

How it's built

Starts on
Another system calling it
Steps
15, with 3 branches
Size
Medium: a working afternoon
Connects to
Google Sheets, Slack
Model
Azure OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

An n8n account, plus your own Google Sheets and Slack accounts, and a key for Azure OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls Azure OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 15 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

Before you run it

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 15 steps before you point it at anything that matters.