Look for community feedback. If the PDF has a comment section or a file hash (MD5), search that hash on Google. Other learners often warn about fakes. A genuine verified version is often shared by a known language teacher or a moderator of a learning forum.
Yes, it aligns with the Common European Framework of Reference for Languages (CEFR), specifically targeting the A1 beginner level. Getting to Global A1 (Beginner). Structure: Look for community feedback
A solucionario means: