Unlike a "Devotional Bible," a Theological Study Bible focuses on systematic theology, doctrine, and original languages (Greek/Hebrew).
While a direct PDF of the full study bible is rare legally, there are excellent free apps that offer the same content legally: Unlike a "Devotional Bible," a Theological Study Bible
A simple Google search will yield many results for "Biblia de Estudio Teologico RV1960 PDF Gratis." YouVersion (Bible App):