# Extract invoice data from scanned PDFs to Google Sheets: n8n workflow

> Started by someone submitting a form, and works across Google Sheets. It hands the judgement calls to Gemini.

Source: https://millionrounds.com/workflow/extract-invoice-data-from-scanned-pdfs-to-google-sheets (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)

# Extract invoice data from scanned PDFs to Google Sheets

Started by someone submitting a form, and works across Google Sheets. It hands the judgement calls to Gemini. 16 steps, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: Gemini

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fextract-invoice-data-from-scanned-pdfs-to-google-sheets)

**16 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**1** Loop or waits

**1** Service it connects to

## The flow

Starts it 1 Model 2 Logic 3 Service 10

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

- 1 **Google Gemini Chat Model** Lm Chat Google Gemini *Model*
- 2 **Trigger – Invoice upload (PDF)** Form trigger *Starts it*
- 3 **Information Extractor** Information Extractor *Model*
- 4 **Create Sarvam invoice OCR job** Http Request *Service*
- 5 **Merge job details with upload URL** Merge *Logic*
- 6 **Append extracted invoice data to Google Sheets** Google Sheets *Service*
- 7 **Generate Sarvam presigned upload URL** Http Request *Service*
- 8 **Upload invoice PDF to Sarvam** Http Request *Service*
- 9 **Start Sarvam invoice OCR** Http Request *Service*
- 10 **Check Sarvam OCR status** Http Request *Service*
- 11 **Wait** Wait *Logic*
- 12 **Get OCR Result** Http Request *Service*
- 13 **Download Sarvam OCR output ZIP** Http Request *Service*
- 14 **Decompress OCR result file** Compression *Service*
- 15 **Extract invoice OCR JSON** Extract From File *Service*
- 16 **Prepare invoice text for LLM** Code *Logic*

## How it's built

- **Starts on:** Someone submitting a form
- **Steps:** 16, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Google Sheets
- **Model:** Gemini

## Questions

What does it need to run?

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

What starts it?

It starts on someone submitting a form.

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. 16 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 16 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%2Fextract-invoice-data-from-scanned-pdfs-to-google-sheets)
- **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.

[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.

- [**Automate bank statement and invoice reconciliation** 16 steps · calls a model · Google Sheets](https://millionrounds.com/workflow/automate-bank-statement-and-invoice-reconciliation)
- [**Automate job discovery & AI proposals across Upwork, Freelancer** 16 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automate-job-discovery-and-ai-proposals-across-upwork-freela)
- [**Automated invoice processing & filing with IMAP** 16 steps · calls a model · Email, Google Drive](https://millionrounds.com/workflow/automated-invoice-processing-and-filing-with-imap)
- [**Automated sales proposal & summary generator with OpenAI** 16 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/automated-sales-proposal-and-summary-generator-with-openai)
- [**Expense Logging with Telegram and Text Parsing** 16 steps · calls a model · Google Sheets, Telegram](https://millionrounds.com/workflow/expense-logging-with-telegram-and-text-parsing)
- [**Negotiate car purchase quotes with Gemini and Gmail** 16 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/negotiate-car-purchase-quotes-with-gemini-and-gmail)