Maybe this is helpful: https://nanonets.com/blog/receipt-ocr/ https://nanonets.com/blog/receipt-ocr/ In my Opinion Tesseract is the most sophisticated "free" O

Maybe this is helpful: https://nanonets.com/blog/receipt-ocr/ https://nanonets.com/blog/receipt-ocr/ In my Opinion Tesseract is the most sophisticated "free" OCR solution out there. The problem with Tesseract is not its recognition capabilities, but more the preprocessing steps. - thresholding - deskewing - segmentation - ... There is a C# library (non-free), that improves recognition A LOT, just by providing these abilities: https://www.vintasoft.com/vsocr-dotnet-index.html https://www.vintasoft.com/vsocr-dotnet-index.html If you find a good Open Source solution, I would be interested, too...