Windows Font Preview tool sometimes says: "Digitally signed" for a font. According to Adobes website, this means:
If the digital signature is valid, then the font really was made by the font foundry identified in the DSIG table.
The Font Preview tool does not say anything about "font foundry". Even the Details-view (right click/properties) in Windows Explorer on a font file does not say anything about "font foundry", it only has the usual other metadata like "Author", "Copyright", "Trademark" etc, but I could not find any valid pattern about which of those metadata actually is signed by the signature.
And how can I check if the signature is still valid, or what the signature even looks like (VeriSign etc)?
Different to .exe files, font files don't have a "Digital Signature" tab when right clicked on. This is so confusing. I also did not find any program that could display infos about the font signatures.