Automate Invoice Data Extraction with OCR.Space, GPT & Google Sheets — n8n 워크플로

보통 복잡도⏰ 예약10개의 노드🏷️ Invoice Processing작성자: Supira Inc.

개요

Overview This template automates invoice processing for teams that currently copy data from PDFs into spreadsheets by hand. It is ideal for small businesses, back-office teams, accounting, and operations who want to reduce manual entry, avoid human error, and never miss a payment deadline. The workflow watches a structured Google Drive folder, performs OCR, converts the text into clean structured JSON with an LLM, and appends one row per invoice into Google Sheets. It preserves a link back to th

사용된 노드

Google SheetsHTTP RequestGoogle DriveCodeOpenAI

워크플로 미리보기

Schedule Trigger (Recurring Execution)
Purpose
- Periodically scan the Drive folder that stores invoic
- Can also be executed manually for debugging.
Google Drive Folder Discovery
Purpose
- Get the parent folder (e.g., "支払い請求書自動計算用フォルダ" meanin
- Auto-detect the current-month subfolder (e.g., a fold
AI Structured Extraction & Google Sheets Appe
Purpose
- Convert OCR results to a strict JSON structure using
- Extract invoice_date / due_date / client_name / subto
OCR Processing (PDF → Text Cleanup)
Purpose
- Download Drive files as binary.
- Use the OCR.Space API for text extraction.
- Remove noise and normalize line breaks.
⚡
S
Schedule Trigger (Weekly…
Get Parent Folder
Get Monthly Subfolder
List Files
Download File (Binary fr…
OCR (OCR.Space Parsing)
Clean OCR Text (Noise Re…
AI Extraction (Generate …
Parse AI Output to JSON
Append to Google Sheets
10 nodes9 edges

작동 원리

  1. 1

    트리거

    워크플로는 예약 트리거로 시작합니다, 정해진 일정에 따라 실행.

  2. 2

    처리

    데이터가 10개의 노드를 통해 흐릅니다, connecting code, googledrive, googlesheets.

  3. 3

    출력

    워크플로가 자동화를 완료하고 구성된 대상에 결과를 전달합니다.

노드 세부 정보 (10)

GO

Google Sheets

googleSheets

#1
HT

HTTP Request

httpRequest

#2
GO

Google Drive

googleDrive

#3
CO

Code

code

#4
OP

OpenAI

n8n-nodes-langchain.openAi

#5

이 워크플로 가져오는 방법

  1. 1오른쪽의 JSON 다운로드 버튼을 클릭하여 워크플로 파일을 저장합니다.
  2. 2n8n 인스턴스를 열고 워크플로 → 새로 만들기 → 파일에서 가져오기로 이동합니다.
  3. 3다운로드된 automate-invoice-data-extraction-with-ocrspace-gpt-google-sheets 파일을 선택하고 가져오기를 클릭합니다.
  4. 4각 서비스 노드에 대한 자격 증명（API 키, OAuth 등）을 설정합니다.
  5. 5워크플로 테스트를 클릭하여 모든 것이 작동하는지 확인한 후 활성화합니다.

또는 n8n → JSON에서 가져오기에 직접 붙여넣기:

{ "name": "Automate Invoice Data Extraction with OCR.Space, GPT & Google Sheets", "nodes": [...], ...}

통합

codegoogledrivegooglesheetshttprequestopenaischeduletrigger

이 워크플로 가져오기

한 번의 클릭으로 다운로드 및 가져오기

JSON 다운로드n8n.io에서 보기
노드10
복잡도medium
트리거scheduled
카테고리Invoice Processing

제작자

Supira Inc.

Supira Inc.

@supira

태그

codegoogledrivegooglesheetshttprequestopenaischeduletrigger
⚡

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Standard accounting templates often fail to reflect a premium brand identity. This sophisticated n8n workflow bridges the gap between financial record-keeping and professional client presentation. By moving beyond the native limitations of QuickBooks Online, this automation enables businesses to generate high-end, multi-page PDF invoices that align perfectly with their corporate styling. The process begins the moment a new invoice is generated in QuickBooks, triggering a webhook that captures real-time billing data. The workflow then utilizes advanced HTML-to-File conversion and custom Code nodes to structure data into a polished, branded layout. It handles complex logic such as line-item merging and multi-page formatting automatically. Once the document is rendered, the system bypasses generic 'no-reply' senders by routing the finalized PDF through your preferred email provider. This ensures a seamless, white-labeled experience for your clients while eliminating the manual overhead of exporting, styling, and attaching files. Ideal for agencies and service providers, this flow guarantees that your most frequent touchpoint—the bill—is as professional as your work. **Common Use Cases:** - High-end creative agencies requiring bespoke, white-labeled billing documents for premium clients. - Automated recurring subscription billing where custom tax disclosures or localized branding are required. - Service-based businesses needing to attach dynamic project reports or terms of service directly to QuickBooks invoices.

🔗 Webhook·12 nodes