Extract Invoice Data from PDFs with AI - Google Sheets Email Alerts β€” n8n Workflow

Medium complexity⚑ Trigger10 nodes🏷️ Invoice ProcessingπŸ‘ 657 viewsby Aashit Sharma

Overview

Built by Setidure Technologies This smart n8n automation extracts invoice details from PDF files uploaded to Google Drive using AI, logs them to a Google Sheet, and notifies the billing team via email β€” all without manual intervention.

⚠️ Note: This workflow requires a self-hosted n8n instance with LangChain, LLM, and Google integrations configured.

πŸ“¦ What This Workflow Does Monitors a Google Drive folder for new invoice uploads

Extracts text and parses key invoice details using LLM via LangC

Nodes used

Google SheetsGoogle DriveGmailOllama ModelOpenAIInformation ExtractorPostgres PGVector Store

Workflow Preview

modeltool
Information Extractor
Send Email
N
No Operation, do nothing
Ollama Model
Postgres PGVector Store
⚑
G
Google Drive Trigger - f…
Download Binary - file
E
Extract from PDF
Create Email Agent
Update DB - spreadsheet
10 nodes10 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a trigger trigger.

  2. 2

    Process

    Data flows through 10 nodes, connecting extractfromfile, gmail, googledrive.

  3. 3

    Output

    The workflow completes its automation and delivers the result to the configured destination.

Node Details (10)

GO

Google Sheets

googleSheets

#1
GO

Google Drive

googleDrive

#2
GM

Gmail

gmail

#3
OL

Ollama Model

n8n-nodes-langchain.lmOllama

#4
OP

OpenAI

n8n-nodes-langchain.openAi

#5
IN

Information Extractor

n8n-nodes-langchain.informationExtractor

#6
PO

Postgres PGVector Store

n8n-nodes-langchain.vectorStorePGVector

#7

How to Import This Workflow

  1. 1Click Download JSON button on the right to save the workflow file.
  2. 2Open your n8n instance. Go to Workflows β†’ New β†’ Import from file.
  3. 3Select the downloaded extract-invoice-data-from-pdfs-with-ai-google-sheets-email-alerts file and click Import.
  4. 4Set up credentials for each service node (API keys, OAuth, etc.).
  5. 5Click Test Workflow to verify everything works, then activate it.

Or paste directly in n8n β†’ Import from JSON:

{ "name": "Extract Invoice Data from PDFs with AI - Google Sheets Email Alerts", "nodes": [...], ...}

Integrations

extractfromfilegmailgoogledrivegoogledrivetriggergooglesheetsinformationextractorlmollamaopenaivectorstorepgvector

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes10
Complexitymedium
Triggertrigger
Views657

Created by

Aashit Sharma

Aashit Sharma

@aashitsharma

Tags

extractfromfilegmailgoogledrivegoogledrivetriggergooglesheetsinformationextractorlmollamaopenaivectorstorepgvector
⚑

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Automate Custom QuickBooks Invoice PDFs & Email with n8n

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 touchpointβ€”the billβ€”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.

πŸ”— WebhookΒ·12 nodes