If you see boxes or random symbols instead of Japanese characters, your PDF reader likely lacks the necessary Japanese language pack.
: Online forums and communities (e.g., Reddit’s r/learnjapanese) often share resources and tips for studying Japanese, including PDFs and other study materials. gakushudo n4 pdf fix
: Download official N4 workbooks to use as a template for the layout you are "fixing." If you see boxes or random symbols instead