The GoToTags Store can print custom artwork with non-standard fonts, however the font files need to be provided by the customer along with their artwork. A font is non-standard if it is not available on default installations of Microsoft Windows 10. Fonts can be submitted along with other order files on the product description page.
Per GoToTags policy, it is the customer’s responsibility to ensure they have the legal license to use the fonts.
Missing Font Warning in Illustrator
If the font files can not be provided to GoToTags, the text must be converted to a vector path. This is easy to do using most design software.