Extracting Elevation Data from PDF files (Contours, Spot Levels etc...)

Hey there! I see you've been doing some interesting work with extracting elevation data from PDF files. Although I'm not familiar with the software you mentioned, it's great that you're experimenting with different options to get the best results. It's true that PDF files can be tricky when it comes to technical metadata, so it's important to have the right tools to handle the job. Have you considered trying out Smart Engines SDK for OCR? It might be able to help you with extracting text from PDF files for elevation data. Anyway, keep up the great work, and don't hesitate to ask for help or advice on the forum!