Every day it would search; if it found a PDF, it would download it and then it would run some PDF-scraping program, and out would come the text, and it would go on the Internet, and then people could make maps like that.
Todos os dias o programa procura; se encontrar um PDF, ele baixa, roda um programa que extrai os dados do PDF, produz um texto e coloca na Internet, para que as pessoas possam fazer mapas assim.