the web app i.e the front end part is next.js and typescript mostly, the landing page is built using astro.js, and the back end is heavily python, flask and some javascript for web-to-pdf and markdown-to-pdf, the rest is mostly python
Not op, but I've had good experience with WeasyPrint. I use it for generating PDF invoices: I create a HTML invoice from a template, WeasyPrint turns it into a PDF document. It handles CSS, images, custom fonts, etc.
A neat trick to convert HTML to PDF in a browser environment is to open a new browser window, load the HTML in it, and call print() on it, like here: https://stackoverflow.com/a/33890644/5821. May be OK for an internal tool.
i used open source solutions to built it, like libreoffice, ghostscript, google's tesseract and a bunch of other tools, Google's Tesseract: https://github.com/tesseract-ocr/tesseract
I’m surprised everyone is using Tesseract. It was the only game in town 10 years ago, and it’s
Ok on cleaned aligned data, but there are a few newer ones like EasyOCR [0] that can deal with much less organized text (albeit more slowly)
EasyOCR looks like it's more focused on the mobile use case of extract text from photos. That's a little bit different from extracting text from scanned documents, where document structure is an important aspect, and Tesseract is the devil we know. In the commercial space ABBYY Finereader still dominates - https://en.wikipedia.org/wiki/ABBYY_FineReader
