I need to extend my existing Shopify store so customers can pass extra information with their orders and, when required, upload a document that is read automatically. Concretely, I want new cart properties—think simple text inputs, a dropdown for predefined choices, and an upload field—added to the cart page and pushed all the way through to the order details in the Shopify admin. Alongside that, the file-upload field must trigger an OCR routine. The moment a shopper completes checkout, the image or PDF they provided should be sent to an OCR engine (Tesseract, Google Vision, or another reliable API you are comfortable with). The extracted text needs to be stored with the order as a note or metafield so I can see it instantly without leaving Shopify. Deliverable is a turnkey solution: • Updated cart template and/or app embed that surfaces the new fields. • Liquid, AJAX, or Shopify Functions code to ensure the properties stay attached to the line item and order. • A serverless function, app proxy, or Shopify app module that receives the file, calls the OCR service, and writes the returned text back to the order. • Brief documentation showing how to adjust field labels, swap OCR providers, and test the workflow. If you can implement this end-to-end, including a quick video walkthrough or annotated screenshots confirming everything works, that will be the final acceptance step.