Some fonts are not supported by Xporter

Description

When exporting templates that contain characters in specific fonts (like the japanese fonts), the generated pdf document is generated with rectangles instead of said characters. Fonts that are known to have this issue are, for instance: MS Gothic, MS PGothic and Yu Gothic. The issue is present both when the text is from a mapping or just text from the original template.

Pre-conditions

How to reproduce

1. Add japanese characters to, for instance, the issue description.
2. Export using a template that contains the description

Actual result/Attachments

Some characters appear as squares.

Expected result

Characters should appear correctly, like in the example below.