AWS Serverless Document Processing Architecture

A production-ready AWS serverless architecture for automated document and receipt text extraction with secure storage and notification workflows.

This repository presents a scalable, event-driven serverless architecture designed to automate document ingestion, AI-based text extraction, structured data storage, and email notifications — without managing infrastructure.

The solution follows AWS Well-Architected principles and is designed for cost efficiency, security, and operational scalability.

Automate document and receipt processing using AWS-native services while maintaining security, scalability, and low operational overhead.

1. User uploads document to Amazon S3
2. S3 triggers AWS Lambda
3. Lambda invokes Amazon Textract for AI-based text extraction
4. Extracted data is stored in Amazon DynamoDB
5. Amazon SES sends completion notification

• Amazon S3 – Secure document storage and event trigger
• AWS Lambda – Serverless orchestration layer
• Amazon Textract – AI-powered structured and unstructured text extraction
• Amazon DynamoDB – Low-latency structured data storage
• Amazon SES – Email notification service
• AWS IAM – Least-privilege access control enforcement

• Fully Serverless – No infrastructure management required
• Event-Driven – Automatically scales with workload
• Cost-Efficient – Pay-per-use pricing model
• Secure by Design – Role-based IAM access control
• Highly Available – Built using managed AWS services

• CloudWatch logging and monitoring configured for Lambda execution visibility
• S3 bucket policies restrict public access and enforce private object storage
• IAM roles configured using least-privilege principles
• Encryption at rest enabled for S3 and DynamoDB
• Designed for horizontal scaling via event-driven architecture
• Can be deployed within isolated VPC environments if required for compliance

This architecture follows a consumption-based pricing structure:

• AWS Lambda billed per execution duration
• Amazon Textract billed per page processed
• DynamoDB configured with on-demand capacity mode
• No EC2 or persistent compute infrastructure required

This makes the design suitable for low-to-moderate document workloads without fixed infrastructure costs.

• FinTech invoice and receipt automation
• EdTech document processing workflows
• Insurance claims digitisation
• Internal enterprise document routing
• SaaS backend document processing services

• Editable source:
  Automated Receipt Processing Tool Architecture.drawio

• Open using:

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