Autowrap output, (long mathematical expression) to fit a pdf file

[Nody22]

Hello,

I'm actually in need for help, wxMaxima did help me a lot for my project but I'm getting stuck with the output document.
As I save it as a pdf, some of the output lines (which are mathematical expressions) goes beyond the pdf document and it is not readable.
I wonder if someone has a tip to overcome this problem, the document is a bit heavy and the calculus cumbersome.
I'd appreciate some help,

I'm using an old mac OS if useful,

Thanks guys,