A common complaint about early Khudz Aqidatak PDFs is missing pages. The book has grown through several editions. Some PDFs are based on the 1st or 2nd edition (1400s AH), missing crucial later chapters or revisions by the author. A "better" PDF is a complete PDF—usually the 10th edition or later.
For those looking to read or listen to commentaries on the book: khudz aqidatak pdf better