: To make this digestible, the series uses a separate "Translation and Grammar Notes" book available in dozens of languages.

Check if your university or local library offers digital lending for language materials.

Yes, if you use it properly. However, the JLPT N5/N4 has a listening section. Since pirated PDFs lack audio, you will fail the listening section unless you buy the CDs separately.

If you want the convenience of a digital file without the guilt, you have excellent legal options.

Would you recommend Minna no Nihongo or Genki for a self learner?