Any luck / tips on using GPTPro / Claude / similar for comparing and extracting table data from PDFs...

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Any luck / tips on using GPTPro / Claude / similar for comparing and extracting table data from PDFs?

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I've been trying, unsuccessfully, to get GPT and Claude to compare two PDFs with "tables". The idea is to read the files and do a detailed comparison. What is missing, added, modified between files/tables and then do Q&A and calculations.

The table data is relatively easy to visually parse and would be straightforward with a pre-processor or human copy/paste as CSV/Excel/Sheets.

I'm trying to automate a workflow, but GPT and Claude have only been able to answer summary info from the files, even with detailed instruction prompts outlining table format, headers, etc.

I could try to break the file into separate images and process those, but that's another preprocessor step.

Anyone with experience on these types of tasks?

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Emcf

These LLMs don't work very well with visually complex PDFs as you already well know. I use thepi.pe to get the data out & it works for tables as well -- it's free & open source for any nerds that are interested as well

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