AI Document Processing and Invoice Automation for Indian Businesses
Invoices, purchase orders, delivery challans, KYC documents, application forms, and contracts still arrive as PDFs, scans, and phone photos. Stacklyn builds AI document processing pipelines that classify incoming documents, extract the fields you need, validate them against your records, and deliver clean data into your ERP, accounting, or CRM — with human review where confidence is low.
From template OCR to document understanding
Older OCR systems relied on fixed templates: each supplier's invoice layout had to be configured, and any change broke extraction. Modern document AI combines OCR, layout understanding, and language models to read documents it has never seen before, including tables, stamps, and handwriting. The practical challenge is no longer reading the text but trusting the output — validating totals, checking identifiers such as GSTIN and PAN formats, comparing against purchase orders, and routing uncertain documents to a person rather than letting errors flow silently into the books.
Built for Indian documents
- GSTIN, PAN, and IFSC validation
Extracted identifiers are checked for valid formats and, where appropriate, against your master data before acceptance.
- Handwritten and stamped documents
Delivery challans, registers, and forms often include handwriting and stamps. We test extraction on your real samples and route uncertain fields for review.
- Multilingual pages
Documents mixing English with Malayalam, Hindi, or Tamil are processed with language-aware OCR.
- Careful KYC handling
Identity documents are processed with Aadhaar masking where required, retention limits, and access controls in line with DPDP Act principles.
What AI Document Processing & Invoice Automation Can Do for Your Business
Accounts payable automation
Extract and validate supplier invoices, match them to purchase orders and goods receipts, and prepare entries for approval.
Purchase order intake
Read customer POs arriving by email and create sales orders automatically with exceptions flagged.
KYC and onboarding documents
Extract and verify details from identity and address documents for faster customer or employee onboarding.
Insurance and claims documents
Classify and extract data from claim forms, bills, and supporting documents to speed assessment.
Logistics paperwork
Digitise delivery challans, LR copies, and proof-of-delivery documents for billing and reconciliation.
Contract data extraction
Pull parties, dates, values, renewal terms, and obligations from contracts into a searchable register.
What You Get From Stacklyn
Document intake connectors
Automatic collection from email inboxes, WhatsApp, shared drives, scanners, and upload portals.
Classification and splitting
Identify document types and split multi-document PDFs automatically.
Field extraction
Configured extraction for your document types, including tables and line items.
Validation rules
Arithmetic checks, identifier validation, duplicate detection, and matching against master data.
Human review interface
Side-by-side review screen highlighting low-confidence fields for quick correction.
System integration
Delivery of validated data to Tally, SAP, Zoho, or custom systems via API or structured export.
From Idea to a Measured, Working System
- 1
Discovery on your real data
We review sample conversations, documents, or workflows and confirm feasibility before you commit to a build.
- 2
Pilot with measured accuracy
A working pilot on a slice of real data, scored against an evaluation set agreed with your team.
- 3
Build, integrate, and harden
Production build with integrations, guardrails, monitoring, and human handover or approval steps.
- 4
Launch, monitor, and improve
Supervised launch, weekly quality reviews in the first month, and ongoing improvement from real usage.
Models, Platforms, and Tools We Use
AI Document Processing & Invoice Automation — Frequently Asked Questions
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Engineering Services Behind It
Find out what AI Document Processing & Invoice Automation can do for you.
Share your use case and a few real examples. We will tell you honestly what AI can and cannot do for it, and send a scoped proposal within 48 hours.