Who is this workflow for? Streamline the extraction of data from bank statement PDFs using this n8n workflow powered by Gemini Vision AI. This automated process leverages multimodal large language models (LLMs) to accurately parse complex document layouts, eliminating the limitations of traditional OCR methods..

What does this workflow do?

  • Import PDF from Google Drive:
  • Access your bank statement PDF stored on Google Drive. This example uses a mock statement with intricate table layouts.
  • Convert PDF to Images:
  • Utilize Stirling PDF to transform the PDF into a series of JPG images, one per page. This tool is self-hostable, ensuring data privacy for sensitive documents.
  • Decompress and Sort Images:
  • Use n8n’s Decompress node to extract the zipped images. Apply the Sort node to maintain the correct page order.
  • Resize Images:
  • Employ the Edit Image node to adjust each image’s resolution, balancing quality and processing speed.
  • Process with Gemini Vision AI:
  • Pass each resized image to the Basic LLM node configured with Gemini 1.5 Pro. Add the image data as a binary input in the “user message” section.
  • Instruct the LLM to transcribe the content into markdown, ensuring accurate representation of tables and layouts.
  • Extract Data from Markdown:
  • Forward the markdown output to another LLM node to isolate specific data points, such as deposit line items, for further analysis or storage.

🤖 Why Use This Automation Workflow?

  • Enhanced Accuracy: Multimodal LLMs excel in handling complex tables and non-standard formats, reducing errors common with traditional OCR.
  • Cost-Effective: Utilizing Gemini Vision AI is significantly cheaper than premium OCR solutions, without compromising on quality.
  • Simplified Process: Eliminates the need for extensive preprocessing, allowing direct conversion of PDFs to structured markdown or desired data formats.

👨‍💻 Who is This Workflow For?

This workflow is ideal for:

  • Financial Professionals: Automate the extraction and analysis of bank statements.
  • Data Analysts: Efficiently gather data from financial documents for reporting and insights.
  • Developers and Automation Enthusiasts: Integrate advanced AI models into automated workflows for various document processing tasks.

🎯 Use Cases

  1. Bank Statement Management: Automatically convert bank statements into markdown for easy review and record-keeping.
  2. Invoice Processing: Extract relevant information from invoices for accounting and auditing purposes.
  3. Legal Document Analysis: Parse contracts and legal documents to identify key clauses and data points.

TL;DR

This n8n workflow leverages Gemini Vision AI to transform complex bank statement PDFs into structured markdown, offering a more accurate and cost-effective alternative to traditional OCR. By automating the data extraction process, users can enhance efficiency, reduce errors, and seamlessly integrate financial data into their existing systems.

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