Michigan Driver License PDF417 API

Decode the PDF417 barcode on the back of a Michigan driver license or State ID and return normalized AAMVA fields as structured JSON.

Capturing Michigan License-Back Barcodes Reliably

Michigan automotive workflows frequently need license data before a test drive or vehicle handover. Manual transcription slows the desk process and introduces avoidable errors in license numbers and dates. PDF417 error correction can recover some damage, but an application should never invent identity values when the payload cannot be decoded.

Normalized AAMVA Data for Michigan Workflows

Send the complete back image to the StructOCR PDF417 API. The service decodes the barcode deterministically, parses the record defined by the AAMVA DL/ID standard, and normalizes the jurisdiction to MI. Capture the back once, retain enough resolution for the stacked bars, and ask the customer to retake rather than inferring a partially decoded record. The free PDF417 scanner can be used to test non-sensitive samples before integration.

Where This Workflow Fits

  • Dealer test-drive intake: Pre-fill names, license number, dates, and address for dealer test-drive intake while keeping final confirmation in the application.
  • Fleet administration: Use normalized region MI and available AAMVA fields to reduce transcription in automotive test drives, dealer intake, and fleet administration.
  • Vehicle handover records: Send unreadable Michigan barcodes to a retake or review queue instead of saving incomplete identity data.
Need more testing? Create a free account to get 200 free credits (equals 100 Driver License scans).

Decode a Michigan License Back

Upload a JPG, PNG, or WebP image with the full Michigan PDF417 barcode visible. The SDK tabs show equivalent server-side calls.

Prerequisite: A server-side StructOCR API key and a clear image of the complete license back

curl -X POST https://api.structocr.com/v1/driver-license-pdf417 \
  -H "x-api-key: $STRUCTOCR_API_KEY" \
  -F "file=@michigan-license-back.jpg"

Technical Specs

  • •Endpoint: POST https://api.structocr.com/v1/driver-license-pdf417
  • •Document scope: Back of a US driver license or State ID with an AAMVA PDF417 record
  • •Inputs: JPG, PNG, or WebP; Base64 JSON or multipart upload; maximum 4.5 MB
  • •Cost: 2 credits for a successful decode; processing failures are refunded
  • •Region output: MI when encoded in a valid Michigan record
  • •Important: Parsing barcode data does not by itself authenticate the credential or the person presenting it

Key Features

  • •Deterministic source: Returned identity fields come from the decoded barcode payload, not generative guessing.
  • •Retake-safe errors: PDF417_NOT_DECODED and AAMVA_NOT_VALID produce explicit 422 responses.
  • •Normalized output: Names, dates, address components, class, restrictions, and endorsements use stable JSON keys when present.
  • •State routing: The normalized region field identifies Michigan as MI.

Illustrative Michigan AAMVA Response

This response uses wholly fictional data to demonstrate the normalized MI shape. Optional elements can be null when they are not encoded.

{
  "success": true,
  "data": {
    "type": "drivers_license",
    "source": "pdf417",
    "country_code": "USA",
    "region": "MI",
    "document_number": "SAMPLE1234",
    "surname": "SAMPLE",
    "given_names": "ALEX MORGAN",
    "first_name": "ALEX",
    "middle_name": "MORGAN",
    "sex": "X",
    "date_of_birth": "1990-01-15",
    "date_of_issue": "2025-01-15",
    "date_of_expiry": "2030-01-15",
    "address": "100 EXAMPLE AVE",
    "city": "SAMPLE CITY",
    "postal_code": "00000",
    "vehicle_class": "C",
    "restrictions": null,
    "endorsements": null,
    "document_discriminator": "SAMPLE-DISCRIMINATOR",
    "issuer_identification_number": null,
    "aamva_version": 10,
    "jurisdiction_version": 0
  }
}

Frequently Asked Questions

Can the API decode a Michigan State ID as well as a driver license?

Yes, when the back contains a usable AAMVA driver-license or identification-card record. The returned type and available optional elements depend on what is encoded.

Does a successful Michigan PDF417 decode prove the card is genuine?

No. It proves that a usable barcode payload was decoded and parsed. Authenticity, identity, eligibility, and fraud decisions require separate controls.

What should the app do after a 422 response?

Ask for a new photo of the full Michigan license back in even light. Do not fill missing fields from an uncertain or partially visible barcode.

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