Automation library · Money admin

Extract invoice data from PDFs with Gemini

Started by an event in a connected app, and works across Gmail, Google Drive and Google Sheets. It hands the judgement calls to Gemini. 17 steps, 1 loop or waits: a working afternoon to understand properly.

MediumCalls a model: Gemini

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17 stepsMedium: a working afternoon
0Branches: places the flow splits
1Loop or waits
3Services it connects to

The flow

Starts it 1Model 4Logic 4Service 8

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

  1. 1Google Gemini Chat Model2Lm Chat Google GeminiModel
  2. 2Google Drive Trigger1Google Drive triggerStarts it
  3. 3Google Gemini Chat Model3Lm Chat Google GeminiModel
  4. 4AI Agent - get targeted elements from text1AgentModel
  5. 5Get list of pdf files1Http RequestService
  6. 6Read processed docs1Google SheetsService
  7. 7Structured Output Parser1Output Parser StructuredModel
  8. 8Loop Over Items1Split In BatchesLogic
  9. 9Cleans output1CodeLogic
  10. 10Compare Datasets1Compare DatasetsService
  11. 11Send a message1GmailService
  12. 12Code in JavaScript1CodeLogic
  13. 13Limit1LimitLogic
  14. 14Update invoice Fields1Google SheetsService
  15. 15Download file1Google DriveService
  16. 16Log the processing of the doc1Google SheetsService
  17. 17Extract from File1Extract From FileService

How it's built

Starts on
An event in a connected app
Steps
17, 1 loop or waits
Size
Medium: a working afternoon
Connects to
Gmail, Google Drive, Google Sheets
Model
Gemini

Questions

What does it need to run?

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

What starts it?

It starts on an event in a connected app.

Does it use AI?

Yes. It calls Gemini. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 17 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 17 steps before you point it at anything that matters.