If you are looking for the in PDF, you are likely referring to the classic "Deutsch Direkt" or "Alemán con Planeta Agostini" collection. These courses are highly valued for their structured, multi-modal approach (audio + text), though they can be hard to find in one piece today. Course Overview
Mucha gente vende colecciones completas en formato físico (fascículos + CDs/casetes). Busca términos como: curso aleman planeta agostini completo pdf