The sky turned a pixelated purple. A deep voice, sounding like a text-to-speech generator, boomed across the park.

"Please work," Leo whispered. He hit the download icon. The little bar crept forward.

Minna No Nihongo - Shokyu I (Translation & Grammatical Notes) Minna No Nihongo - Shokyu II (Main Textbook)

In some countries, downloading a PDF for personal educational use is tolerated, though not legal. Uploading is the clear violation.