Here are some final recommendations:
Guía Completa de la Ars Goetia en Español: Origen, Demonios y Descarga en PDF ars goetia en version espa%C3%B1ol pdf
Yes, you can find free PDFs of the Ars Goetia (typically in English) in the public domain on sites like archive.org . A full, reliable free Spanish translation is more difficult to find, but excerpts and lists of demons are available. Here are some final recommendations: Guía Completa de
Reyes, Duques, Príncipes, Marqueses, Condes, Presidentes o Caballeros. What sets the Ars Goetia apart from other
What sets the Ars Goetia apart from other magical texts is its highly organized structure. Rather than a simple list of terrifying creatures, it presents a detailed and bureaucratic hierarchy. Each of the 72 demons is assigned a specific noble rank (such as King, Duke, Marquis, or President), holds command over a specified number of legions of lesser spirits, and possesses unique powers and knowledge. Each spirit also has a distinctive "seal" (or sigil), a unique geometric symbol that acts as a binding signature, allowing the magician to command and control them.