Within mainstream Islam, practicing the contents of the Kitab Abajadun is highly controversial. Many orthodox scholars consider it Shirk (polytheism) because it involves calling upon other-than-Allah. If you are downloading this for spiritual practice, ensure you understand the theological implications.
Note: For academic or historical study only.
Why is the PDF version so specifically sought after? Because the Kitab Abajadun is essentially a workbook. Unlike a novel, you need to:
A physical paperback reprint (rare as they are) cannot compete with a searchable PDF that allows you to jump between the letter index and the talismanic seals. Moreover, OCR (Optical Character Recognition) technology is slowly becoming capable of handling Arabic maghribi script, making PDFs the only viable medium for computational analysis of the text.
