Extract invoice data from PDF to Google Sheets

# Extract invoice data from PDFs in Google Drive to Google Sheets using AI

This workflow automates the processing of incoming PDF invoices by eliminating manual data entry and reducing errors. Ideal for users managing bookkeeping in Google Sheets who receive invoices via cloud storage.

## Who it´s for
- Accountants handling multiple incoming invoices
- Small business finance managers tracking expenses in Google Sheets
- Administrators automating document workflows based on cloud storage
- Freelancers organizing income and expenses
- Companies implementing initial accounting automation without ERP

## What the automation does
- Monitors a specific Google Drive folder for new PDF invoices
- Downloads the file and extracts text using OCR
- Sends the text to an AI agent powered by LangChain and GPT-4o-mini
- Parses key fields: invoice number, dates, vendor, amount, category
- Converts data into structured JSON format
- Appends the record to a designated Google Sheets spreadsheet
- Triggered by file creation or scheduled polling

## What´s included
- Ready-to-use n8n workflow
- Trigger and parsing logic
- Integrations with Google Drive, Google Sheets, and OpenAI
- Textual setup and adaptation guide

## Requirements for setup
- n8n instance with execution environment access
- Google account with access to Google Drive and Google Sheets
- OpenAI API key
- Read/write permissions for specified folders and spreadsheets

## Benefits and outcomes
- Fully eliminates manual data entry from PDF invoices
- Reduces risk of errors in interpreting invoice details
- Speeds up bookkeeping and reporting preparation
- Provides a single source of truth in Google Sheets
- Scales to handle dozens of invoices per day
- Avoids the need for expensive accounting software

## Important: template only
Important: you are purchasing a ready-made automation workflow template only. Rollout into your infrastructure, connecting specific accounts and services, 1:1 setup help, custom adjustments for non-standard stacks and any consulting support are provided as a separate paid service at an individual rate. To discuss custom work or 1:1 help, contact via chat