Thereâs a wide range of OCR tools that offer quick and accurate text extraction from multiple PDF files. Open source tools provide fair quality and structured outcomes. However, if you are looking for scalable automation, the best option would be to check out some OCR API. Normally, PDF APIs provide text extraction to multiple formats such as PDF to Excel, PDF to JSON, PDF to CSV, and others. One of the options is to get PDF extraction to plain text. Hereâs a quick tutorial on how to extract plain text from PDF files with some source code and demo guides.