If you are looking for a , the most authoritative and high-quality digital version is hosted by the Bodleian Library at the University of Oxford, which holds the original manuscript (MS. Bodl. Or. 133). Why the Kitab al-Bulhan is Unique
Alongside the supernatural, it features diagrams for more "grounded" sciences like geomancy and the study of the seasons. Where to Access the Digital Manuscript kitab albulhan pdf link
Many of the most famous illustrations (like the "King of the Djinn") are available in the public domain and can be downloaded as individual high-res files or compiled PDFs for study. If you are looking for a , the