Criticism invited, so here goes.

• I'd write the long text strings as here-docs, or better yet, put them in __DATA__ section at the end.
  Paragraph mode perhaps to cut it up.

  my ($header, $body, $footer) = do { local $/ = ""; <DATA> };
  [download]

• I fail to see the reason to put $find through quotemeta. (And there's also the \Q\E).
• It is advisable to use named constants instead of magic numbers: use constant COLS => 7;
• For loop more concisely written using repetition operator: print $tombolatex $body x (1 + $N / COLS);
• ...
• All in all, it looks like a simple templating job.