Thai document OCR with AI

We connect the OCR system to the routes your documents already take: the department’s inbox, LINE OA, the scanner folder, Google Drive or an upload page. The AI reads Thai and English text from PDFs, photos and scans, including clearly written handwriting on delivery notes and slips, and extracts fields by document type. A tax invoice yields the number, date, the vendor’s name and tax ID, the amount before VAT, the VAT and the total, and each line item. A delivery note yields the PO number, items, quantities and whether it was signed. An ID card copy yields only the fields you decide to keep under PDPA. New document types can be added later without rebuilding the system.

Before posting, the system runs the checks people already do by hand: do the line items add up to the subtotal, VAT and total, is the tax ID complete and well formed, has this document number come in before, does the vendor exist in your system. The AI scores its confidence on every field. Fields it is unsure of, or that fail a check, go to the check queue, where the person sees the original image beside the fields and confirms or corrects on one screen. Documents that pass every check go straight into your ERP, accounting software or Google Sheets with the original file attached. Every field has a log of what the AI read, who confirmed it, what changed and when.

Original files stay in your own storage, named and filed by document type and month, searchable by number, vendor or amount. For ID card copies, HR files and medical records that cannot leave the company, we install a Private LLM so the AI reads inside your network. This reading system is the base for the next step: to match invoices against POs and post payables, it feeds the accounting and finance workflow, and when the destination program has no API, RPA keys the extracted data in place of a person.