# Capture, classify, and log Gmail PDF invoices with Gemini: n8n workflow

> Started by an arriving email, and works across Gmail, Google Drive and Google Sheets. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/capture-classify-and-log-gmail-pdf-invoices-with-gemini (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Money admin](https://millionrounds.com/workflows?category=Money+admin#library)

# Capture, classify, and log Gmail PDF invoices with Gemini

Started by an arriving email, and works across Gmail, Google Drive and Google Sheets. It hands the judgement calls to Gemini. 12 steps, 2 branches, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fcapture-classify-and-log-gmail-pdf-invoices-with-gemini)

**12 steps** Medium: a working afternoon

**2** Branches: places the flow splits

**1** Loop or waits

**3** Services it connects to

## The flow

Starts it 1 Model 1 Logic 7 Service 3

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

- 1 **Gmail Trigger** Gmail trigger *Starts it*
- 2 **Has PDF Attachment?** If *Logic*
- 3 **Split Out** Split Out *Logic*
- 4 **Loop Over Items** Split In Batches *Logic*
- 5 **Analyze document** Google Gemini *Model*
- 6 **Merge Corporate File + Metadata** Merge *Logic*
- 7 **Merge Personal File + Metadata** Merge *Logic*
- 8 **Edit Fields** Set *Logic*
- 9 **Upload to Corporate Drive** Google Drive *Service*
- 10 **Upload to Personal Drive** Google Drive *Service*
- 11 **Is Corporate Invoice?** If *Logic*
- 12 **Append row in sheet** Google Sheets *Service*

## How it's built

- **Starts on:** An arriving email
- **Steps:** 12, with 2 branches, 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 arriving email.

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. 12 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 12 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fcapture-classify-and-log-gmail-pdf-invoices-with-gemini)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)[Google Drive](https://millionrounds.com/workflows?service=Google+Drive#library)[Google Sheets](https://millionrounds.com/workflows?service=Google+Sheets#library)

## Workflows like it

Also money admin, with the same services where possible, closest in size first.

- [**AI auto-save Gmail receipts to Google Sheets + Google Drive** 12 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/ai-auto-save-gmail-receipts-to-google-sheets-google-drive)
- [**AI business proposal generator with Gemini and Google Drive** 12 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/ai-business-proposal-generator-with-gemini-and-google-drive)
- [**Automate employee trip expense processing with Jotform** 12 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/automate-employee-trip-expense-processing-with-jotform)
- [**Automate invoice processing & stock management with Gmail** 12 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automate-invoice-processing-and-stock-management-with-gmail)
- [**Automated Invoice Flow Manager with OpenAI and Gmail** 12 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automated-invoice-flow-manager-with-openai-and-gmail)
- [**Automated trip expense claim form with OpenAI and Google Drive** 12 steps · calls a model · Email, Google Drive](https://millionrounds.com/workflow/automated-trip-expense-claim-form-with-openai-and-google-dri)