If your search for the PDF leads you to a dead end, consider this a sign. Visit a Nath Panth temple, read the songs of Gorakhnath ( Goraksha Vani ), or practice Maha Mudra with sincere devotion. The knowledge will find you.
The Goraksha Samhita is a sacred text, not just a historical artifact. While many websites offer free PDF downloads, they often strip the text of its original context or insert errant commentary. For serious practitioners, it is worth purchasing a hard copy—such as the version edited by Swami Kuvalayananda—and then cross-referencing with digital scans. goraksha samhita pdf