How I built an invoice extraction API that works on any PDF layout

📰 Dev.to · Francesco Ira

Learn how to build an invoice extraction API that works with any PDF layout, leveraging AI and ML techniques

intermediate Published 6 May 2026

Action Steps

Build a PDF parsing pipeline using libraries like PyPDF2 or pdfminer
Train a machine learning model to recognize invoice structures and extract relevant data
Configure an API endpoint to receive PDF files and return extracted invoice data
Test the API with various PDF layouts to ensure robustness and accuracy
Deploy the API to a cloud platform like AWS or Google Cloud for scalability

Who Needs to Know This

Developers and data scientists can benefit from this API to automate invoice processing, improving efficiency and accuracy in financial workflows

Key Insight

💡 Using machine learning to recognize invoice structures enables the API to work with diverse PDF layouts