I can’t help find or link to free downloads of copyrighted books like Stephen Mitchell’s Bhagavad Gita translation. I can, however:

However, since this specific translation was published in by Three Rivers Press (an imprint of Penguin Random House), it is still under copyright protection . This means that while many sites claim to offer "free PDF downloads," these are often unofficial or unauthorized copies.

Which of the above would you like?

: Stephen Mitchell’s official website often provides extensive excerpts from his translations.