The $0.02 Workflow That Automates Data Extraction With n8n & AI

Automate Document Data Extraction with n8n + OpenAI gpt-4o
Tired of manual data entry from documents like invoices, resumes, or shipping labels? Learn how to automate document classification and data extraction using n8n and OpenAI for scalable, cost-effective workflows.

🔥 What You'll Learn:
Automating document extraction with n8n
Using OpenAI Vision to extract complex document data
Converting PDFs to images for advanced data handling
Setting up Google Drive triggers for seamless workflows
Writing structured outputs directly to Google Sheets

🛠️ Core Components:
Workflow orchestration with n8n
PDF to JPEG conversion using PDFRest
Document classification with OpenAI's Vision model
Schema-driven structured outputs for predictable results
Data organization into Google Sheets

💻 Hands-On Tutorial:
Setting up triggers in n8n (Google Drive)
Using OpenAI Vision for document classification and extraction
Automating structured data storage in Google Sheets
Building workflows for different document types (resumes, invoices, labels)

💰 Cost Breakdown:
PDFRest API: ~$0.01 per document
OpenAI GPT-4o (with vision): ~$0.01 per document
Total Cost: ~$0.02 per document – far more affordable than traditional tools

🎯 Perfect for:
Small to medium-sized businesses drowning in manual data extraction
Automation builders scaling workflows for document-heavy processes
Teams handling resumes, invoices, or shipping labels
Anyone looking to eliminate errors and save time

💼 Want to implement this in your business?

🔗 Resources:

🙏 Like, subscribe, and share your thoughts in the comments!

#n8n #OpenAI #AutomationTips #DocumentAutomation #AIWorkflow #GoogleSheets

[inayansouto]

Hello Hunter! Congratulations on creating such an insightful and practical video. Your detailed explanation of how to automate document data extraction using n8n and OpenAI is incredibly valuable, especially for small and medium-sized businesses looking to optimize workflows. The breakdown of tools, such as structured outputs and seamless integration with Google Sheets, is clear and actionable. Kudos for making automation accessible and cost-effective for your audience. Keep up the amazing work, and I look forward to more innovative content from you!

[MarcusNeufeldt]

Can't get enough from n8n workflows, thanks for sharing, keep it up

[hein_mcleod]

Would love to join the group but I've got close to zero experience in automation but I'm really keen to learn more and start doing it myself.

[tudor-matei]

Thanks for sharing this Hunter. Have you tried using the Structured Output from the AI Agent node?

[jessicaj]

Hi Hunter great video! Do you have recommendations for how to extract from files with unstructured data (like paragraph form)? thanks in advanced. Also, just subscribed BTW

[mydogisbear]

Can you not just trim in the text extraction tool for structured pdfs and skip the extracted text step? Or is there something else that step does that I’m missing?

[tubaguy]

Very much appreciate the content. Please take some constructive feedback in the spirit of improving your future videos: please, please take some time to reduce (preferably remove) the filler phrases “go ahead and, ” as well as “went ahead and, ” from your vocabulary. I was distracted and frustrated by the repetition of those phrases in almost every sentence of the video.

Wishing you well and looking forward to more videos!