Bhagavad Gita text in Kannada in pdf is presented by Shri Swami Adgadanandji of Yatharthgeeta website. Each chapter of Bhagavad Gita is presented in a separate pdf file. You can download all the eighteen chapters of the Bhagavad Gita in Kannada but only separately not as a single book.
You can download the Bhagavad Gita in Kannada in pdf format here at the Yatharth geeta website.