Modification of an old font
We have an old TrueType version of (Adobe's) Century Old Style. It was purchased in the nineties, and we had it modified to include extra glyphs (for additional languages) and also hinted for screen use. As far as I can tell this would have been allowed as until 2011 the license permitted customers to modify fonts licensed from the Adobe Type Library (https://helpx.adobe.com/fonts/using/adobe-type-resources-faq.html#FontPermissions).
Now we want to further modify the font (add more missing glyphs, and convert it to OpenType with new hinting). We want to do this using an external company for this (as we lack the expertise), and this is where we are a bit uncertain about the lisencing as we would need to hand the font files over to a 3rd party (only for them to modify and return, not use). Would they need a separate license for this? And if so, if new licenses don't allow modification, how would we solve this?
