I should start by acknowledging the request and then clarify the importance of copyright. Maybe mention that the book is protected by intellectual property laws. Then, suggest legal alternatives like purchasing from online stores or checking the library. Also, offer to help find the title in Portuguese if there's any confusion.

Finally, make sure the tone is helpful and not dismissive of the user's request. Acknowledge their interest and provide constructive options to access the book legally.

I should also consider that the user might not know about free public domain books or open-access resources. But "A Alma Indomável" doesn't ring a bell as a public domain work. Let me confirm the author's lifetime. If the author is still alive, it's definitely under copyright. If not, maybe the work is in the public domain in the country of origin. But the user is asking for a free PDF, so they might be looking for a study guide or summary. Could "A Alma Indomável" be a study guide itself? Maybe the user got confused between the original work and the study material. Alternatively, there might be a free version provided by the author or publisher for educational purposes.