We provide several useful courses for you.
If your budget is truly zero, do not search for the PDF. Instead, use these alternatives to mimic the Sou Matome N2 Kanji experience:
The "Tango" series (由) offers a free 5-page sample of their N2 Kanji. It mimics the "one vocabulary per Kanji" format of Sou Matome. Nihongo Sou Matome N2 Kanji Pdf Free Download