Thank you for lettin' me in. I found this website while I was looking for an answer to this question: how come metrics differ between a design program and a layout program? And how can we fix it?
I just made my 1st font with Font Forge. And when I test it in InDesign, the metrics are different than the ones I defined in Font Forge. It's a bit better if I export the font in true type instead of open type... but it's still different. Please find hereabove an illustration:
- in black (and behind), the metrics in Font Forge,
- in yellow, the font used in InDesign (got exported as a true type),
- and in magenta (on top) the font used in InDesign but exported as an open type.