Automate PDF Invoice Generation & Delivery with Gmail and Google Drive Storage — n8n Workflow

Medium complexity🔗 Webhook8 nodes🏷️ Invoice Processingby Ibrahim Emre POLAT

Overview

How it works Automatically generates professional PDF invoices from webhook data and delivers them via email while storing backups in Google Drive. Perfect for freelancers, small businesses, and service providers who need automated billing workflows.

Set up steps Configure environment variables for company information (name, address, email, phone). Set up your PDF generation API service account (PDFShift recommended). Configure SMTP email credentials for invoice delivery. Set up Google Drive OA

Nodes used

Send EmailHTTP RequestGoogle DriveCode

Workflow Preview

✅ SUCCESS RESPONSE
- Confirms invoice generated
- Returns invoice number & total
- Email delivery confirmation
- Google Drive storage status
- Complete operation summary
☁️ SAVE TO DRIVE
- Uploads PDF to Google Drive
- Organized folder structure
- Automated file naming
- Backup for accounting records
- Secure cloud storage
📧 SENDS TO CUSTOMER
- Emails PDF invoice to customer
- Professional email template
- Includes payment instructions
- Attachment with generated PDF
- Confirms delivery status
📄 INVOICE GENERATION
- Creates professional HTML template
- Applies company branding & colors
- Builds itemized table with pricing
- Adds payment terms and due dates
- Includes company contact de
⚙️ PREPARING INVOICE
- Extracts customer data from webhook
- Validates required fields (email, items)
- Calculates line totals and subtotals
- Applies tax rates (default 10%)
- Formats dates and
⚡
W
Webhook Trigger
Process Invoice Data
Generate HTML Template
Generate PDF
Send Email to Customer
Save to Google Drive
Success Response
⚡
R
Respond Webhook
8 nodes8 edges

How it Works

  1. 1

    Trigger

    The workflow starts with a webhook trigger.

  2. 2

    Process

    Data flows through 8 nodes, connecting code, emailsend, googledrive.

  3. 3

    Output

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

Node Details (8)

SE

Send Email

emailSend

#1
HT

HTTP Request

httpRequest

#2
GO

Google Drive

googleDrive

#3
CO

Code

code

#4

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 → New → Import from file.
  3. 3Select the downloaded automate-pdf-invoice-generation-delivery-with-gmail-and-google-drive-storage 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 → Import from JSON:

{ "name": "Automate PDF Invoice Generation & Delivery with Gmail and Google Drive Storage", "nodes": [...], ...}

Integrations

codeemailsendgoogledrivehttprequestrespondtowebhookwebhook

Get This Workflow

Download and import in one click

Download JSONView on n8n.io
Nodes8
Complexitymedium
Triggerwebhook
CategoryInvoice Processing

Created by

Ibrahim Emre POLAT

Ibrahim Emre POLAT

@epolat

Tags

codeemailsendgoogledrivehttprequestrespondtowebhookwebhook
⚡

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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 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