Anyone have any OCR experience? I have a pile of receipts I've been too lazy to put in. I've experimented with tesseract; I'm hoping to get better results if I use a scanner rather than my phone, and at a higher DPI, but it has trouble with, say, recognizing "26Z" as "262", and "WF6Z" as "UFGZ".

I'll also scan my existing data for common "words" (product names) and such to generate a word list, but something like "WF6Z" is dynamic; they just didn't put a space between the WZ and the size (6oz).

Must be a free/libre solution to the problem.