Nowadays, the Optical Character Recognition is the preferred way to digitize documents, instead of entering the metadata of the documents manually, because the OCR will identify the text in the documents which are fed into the document management system and allows you to do something with the plain text, without even reading it by yourself. For JavaScript, there's a popular solution based on the Tesseract OCR engine, we are talking about the Tesseract.js project. Tesseract.js is a pure Javascript port of the popular Tesseract OCR engine. This library supports over 60 languages, automatic text orientation and script detection, a simple interface for reading paragraph, word, and character bounding boxes. Tesseract.js can run either in a browser and on a server with NodeJS which makes it available on a lot of platforms.