I worked in the same space as a company that does this with ML (and charges for it), using some form of Recurrent Neural Network IIRC. Maybe LSTMs? They had a

I worked in the same space as a company that does this with ML (and charges for it), using some form of Recurrent Neural Network IIRC. Maybe LSTMs? They had a contract to index historical French archives composed of handwritten latin documents in elasticsearch. Depending of the historical relevance of your documents (read: some academic funds), they may be able to help. Doesn't hurt to contact them: https://teklia.com/ https://teklia.com/