Does the font have a DSIG table?


Microsoft Office 2013 and below products expect fonts to have a digital signature declared in a DSIG table in order to implement OpenType features. The EOL date for Microsoft Office 2013 products is 4/11/2023. This issue does not impact Microsoft Office 2016 and above products.

As we approach the EOL date, it is now considered better to completely remove the table.

But if you still want your font to support OpenType features on Office 2013, then you may find it handy to add a fake signature on a placeholder DSIG table by running one of the helper scripts provided at https://github.com/googlefonts/gftools

Reference: https://github.com/fonttools/fontbakery/issues/1845

Legacy check originally simply called ‘check/045’. We used to lack richer metadata back in 2015. We’re open to further improvements to this description. - Some additional changes were proposed at https://github.com/fonttools/fontbakery/issues/3398