how to make a desktop document into a pdf?

In the print dialogue of every application there's an option to save as PDF. So file -> Print...

Ok. Go to File (in the top menu bar) > Export To > PDF

You can then choose where to save it.

Cheers,

Jack

Hi NanaSkaggs,

What app does the document originate from? (Such as Pages, Word, etc.)

Cheers,

Jack

Yes. On your end it may seem like an image.