Often, these free files are missing crucial chapters or have low-resolution diagrams that make the chemical structures impossible to read.
Check platforms like Olx, Quikr, or local second-hand bookstores. You can often find this book for 50-70% off the retail price.
It provides a very solid foundation in IUPAC naming, which is the "make or break" point for most organic chemistry students. The Risks of "Free PDF" Downloads