FNC Data grid and PDF export: characters are printed on top of each other

We use TMS Web Core 2.9.6 and FNC UI Pack 7.0. We have patched PDF export component to work without compression (see previous post). What could be the reason for the PDF export of an FNC data grid that characters are printed on top of each other as in the attached file:
084ca1d3-b3f8-4f40-ae9c-8bb0c6abd083.pdf (58.4 KB)
The FNC data grid itself looks like this:

Ok. It seems to be a font specific issue. If I explicitly assign the Roboto font as in the PDFExport demo, the PDF looks ok. Are there any recommendations about which fonts to use for the PDF export?

Hi,

You'll need to load the fonts you are using first.

Thank you.