Helvetica font Problems when safing as PDF

Hello Draftman Colleagues,

I've got a problem with my fonts.

As soon as I create a PDF with "save as" "PDF" the font Helvetica changes some ipmuts into strange symbols.

Any Idea what to do?

 

And the second thing is, when I use Helvetica light and use the "bold" button the text in Solid is changed, but again as sson as I go for "save as" "PDF" the texts are in basic thickness again.

This one is not happening with print as PDF.

 

I am using Windows 11.