Even when a PDF exists, it is usually in . There is no widely circulated English translation available for free. Users searching for a PDF often expect a translated version, but copyright laws on rare Sanskrit translations are strict. Most English translations are held by academic presses (like the University of Madras or Adyar Library) and are sold as hard copies costing $50–$200.
The non-profit (run by IIT Madras) and Archive.org occasionally host scanned copies of the original Sanskrit manuscripts. Sudarshan Samhita Book Pdf