I'm looking for guidance on how to efficiently extract data from a PDF document that includes text, images, and tables. My goal is to create a digital version of this document to pass on to a language model (LLM). I've considered using PyMuPDF, but I'm worried about losing the structure of the document since the extraction might be done separately and the placeholders may not be retained. For instance, if there's a company logo, I could analyze it separately to create a summary, but I'm not sure how to clearly indicate to the LLM where the image starts and ends, compared to regular text or tables. Also, if there are context clues from the previous page, how can I ensure that they remain coherent when I compile the digital document? Any insights on how to tackle these challenges would be greatly appreciated!
4 Answers
I recently built a document parser for a similar need, and it worked like a charm! I used Docparser, which has a free trial that allowed me to test it out before committing. It drastically reduced the time I used to spend, from an hour down to just a few minutes! Check it out!
If you’re looking for something off-the-shelf, you might want to check out Airparser. I’m one of the founders, and it uses a custom LLM to extract the text, tables, and fields from PDFs while preserving the original structure. It could be exactly what you need!
It sounds like you might need to write a custom parser tailored to your needs. Look into different PDF parsing libraries and see what implementations already exist that could meet your requirements. That way, you can tackle the unique aspects of your documents effectively!
You might want to ask the LLM itself about how to handle this! There are definitely tools available that can parse PDF files. If the LLM can’t do the parsing directly, maybe you could supply a PDF parser tool to it. Just keep in mind that using files with varying formats could complicate the extraction process, so getting the LLM’s input could be helpful! 😊

That sounds amazing! I’ll definitely give Docparser a try for my project.