AI Document Analyser
Upload any PDF and get instant AI-powered summaries, clause extraction, and risk flags — built for legal and finance teams.
What needed solving
A legal services firm was spending 6–8 hours per contract manually reviewing clauses, flagging risks, and extracting key dates. With deal volume increasing, the process was becoming a bottleneck and a liability.
How I solved it
I built an AI document analysis tool where users upload a PDF and receive a structured report in under 30 seconds — covering summary, key clauses, risk flags, and critical dates. Built on FastAPI with OpenAI GPT-4o and deployed serverlessly on AWS Lambda.
A look at the product
Key Features
- PDF upload with instant AI-powered analysis
- Executive summary generated per document
- Clause extraction with category tagging
- Risk flag detection with severity scoring
- Critical date extraction (deadlines, renewals, expiry)
- Exportable structured report as PDF or JSON
Architecture
- 01FastAPI backend for async document processing
- 02PyMuPDF for PDF text extraction and page parsing
- 03OpenAI GPT-4o with structured output for consistent JSON responses
- 04AWS Lambda + API Gateway for serverless deployment
- 05AWS S3 for document storage with presigned URL access
- 06Next.js frontend for upload flow and report rendering
Results & Outcomes
Document review time reduced from 7 hours to under 30 seconds
Risk detection accuracy validated at 91% against manual review
Team capacity increased — same headcount handling 3x deal volume
ROI achieved within the first month of deployment
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