In some countries, downloading a PDF for personal educational use is tolerated, though not legal. Uploading is the clear violation.
The main textbook has "Mondai" (Questions) sections. Do them in a notebook. Writing the kanji and sentence patterns is how you move from passive understanding to active production. Pdfcoffee Minna No Nihongo
Every time he encountered a problem, the ghostly Pdfcoffee interface flickered in his vision, offering him "Preview Only" fragments of the grammar. It was maddening. He could see the vocabulary list, but the definitions were blurred out, obscured by a watermark that read . In some countries, downloading a PDF for personal