I wouldn't bother with parsing the pdf. Directly reading from pixels can be more accurate than the parsed output, but will require some R&D. You'll need very hi

I wouldn't bother with parsing the pdf. Directly reading from pixels can be more accurate than the parsed output, but will require some R&D. You'll need very high recall text detection and an accurate algorithm for OCR. And a lot of real documents as training data. It's critical that the training data is good quality and much of the engineering effort should go into good annotation interfaces. We built an end-to-end system for all this at evolution.ai. Please email me if interested in an off-the-shelf solution. martin@evolution.ai.