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Llama-Scan: Convert PDFs to Text W Local LLMs

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Re: Llama-Scan: Convert PDFs to Text W Local LLMs

#4

Looking at the code, this converts PDF pages to images, then transcribes each image. I might have expected a pdftotext post-processor. The complexity of PDF I guess ...

There is a very popular Python module called ocrmypdf. I used it to help my HOA and OCR’ing of old PDFs.

https://github.com/ocrmypdf/OCRmyPDF

No LLMs required.

Re: Llama-Scan: Convert PDFs to Text W Local LLMs

#7

Looking at the code, this converts PDF pages to images, then transcribes each image. I might have expected a pdftotext post-processor. The complexity of PDF I guess ...

Shell: GNU parallel, pdftotext

Python: PyPdf2, PdfMiner.six, Grobid, PyMuPdf; pytesseract (C++)

paperetl is built on grobid: https://github.com/neuml/paperetl

annotateai: https://github.com/neuml/annotateai :

> annotateai automatically annotates papers using Large Language Models (LLMs). While LLMs can summarize papers, search papers and build generative text about papers, this project focuses on providing human readers with context as they read.

pdf.js-hypothes.is: https://github.com/hypothesis/pdf.js-hypothes.is:

> This is a copy of Mozilla's PDF.js viewer with Hypothesis annotation tools added

Hypothesis is built on the W3C Web Annotations spec.

dokieli implements W3C Web Annotations and many other Linked Data Specs: https://github.com/dokieli/dokieli :

> Implements versioning and has the notion of immutable resources.

> Embedding data blocks, e.g., Turtle, N-Triples, JSON-LD, TriG (Nanopublications).

A dokieli document interface to LLMs would be basically the anti-PDF.

Rust crates: rayon handles parallel processing, pdf-rs, tesseract (C++)

pdf-rs examples/src/bin/extract_page.rs: https://github.com/pdf-rs/pdf/blob/master/examples/src/bin/e...

Re: Llama-Scan: Convert PDFs to Text W Local LLMs

#9

Looking at the code, this converts PDF pages to images, then transcribes each image. I might have expected a pdftotext post-processor. The complexity of PDF I guess ...

I imagine part of the issue is how many PDFs are just a series of images anyway.
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