The DIN font seems to have an issue with Kerning.
Anything which is not a letter (e.g. '+', '-', '.') seems to create another whitespace.
"Qt Quick 1.0" looks like "QtQuick 1 . 0"
"C++" like "C + +"
"some-dash" like "some - dash"
The issue is valid for native text rendering and distance fields.
I also tested our texedit example.
Wordpad renders the font just fine.
The font is available here:
I tried DINOT-Light.otf, DINOT-Black.otf and DINOT-Regular.otf