Why does text disappear in the title block?

Hi Support

My problem is that when i create a pdf from a 2d drawing, all the text in the title block disappears but i can see it in drawing view.

Also when i print the document directly the text is also there, it is only when i create a pdf from a 2d drawing that the text is gone i the pdf.

I am not the only person in the company that has this problem and we cant figure out why only some of us have the problem.

Here is a picture of the problem taken from adobe reader:

Hope you can help.

SolidworksDrawings And Detailing