Perhaps the app developers found it easier to measure an 'H' than to learn how to read the vertical metrics.Īnyway, if you want to solve the problem, WinPCSign offers a 1 month trial, so you can do the troubleshooting yourself instead of sending test fonts to the client. That is possible, and I have heard of applications that determine metrics by measuring certain glyphs, but in most cases it's a stupid way to get vertical metrics, since all fonts have vertical metrics defined in the font file. But if you want your fonts to be compatible with as many apps as possible, you either have a long learning curve ahead of you, or you need to hire a font engineer. Here's a really good article on different approaches to vertical metrics (useful even if Glyphs isn't your software of choice):īottom line: if your customers are only using major design apps like Adobe CC, you can just export your OTF/TTF with the default settings in your chosen font design software, and you won't likely have problems. Or ask the developers of the software for advice on what they expect for vertical metrics. So, the way to troubleshoot this is to get yourself a copy of the software in question, and test it until you can work out how it's interpreting the vertical metrics in your font. How much do you know about vertical metrics? Operating systems and applications have many different ways of interpreting them, due to a lack of standardization that spiralled out of control over the years.

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