My understanding is that most printers will ignore any white in a document but the actual code for the white text or white image is sent. So yeah PDF would contain white text.
After all some printers are going to be printing on non-white materials and so do have white ink, so they need that information sent over, and the PDF doesn’t know what type of printer it’s going to ahead of time.
Wouldn’t that text just disappear when you turn it into a pdf?
No. Why would it?
Depends on how you do it I suppose. If you use the print to pdf dialog f.ex. it would.
My understanding is that most printers will ignore any white in a document but the actual code for the white text or white image is sent. So yeah PDF would contain white text.
After all some printers are going to be printing on non-white materials and so do have white ink, so they need that information sent over, and the PDF doesn’t know what type of printer it’s going to ahead of time.