Hi,

I've noticed that Chrome render and Prince render are different for the attached document. Prince renders text using Concert One font lower than Chrome.

Thanks.

1. concert_one_bug.html‎ 4.0 kB ‎
   Source HTML

Sorry for the delay, I'm having difficulty reproducing this issue with Prince 10 and comparing with Firefox and Chrome output. Can you attach a screenshot or PDF of the output you are getting?

Chrome - https://monosnap.com/file/54WGgE99J62jIV3IbxH4nVFspeAf9Q
PDF - https://monosnap.com/file/7sFylUQLiDHxLXzo5O0ARi8xQGeBoy

I can confirm that when I change font from Concert One to Roboto, Prince produces output same as Chrome.

The font appears to have inconsistent font metrics: the ascender height is reported as 2005 units in one table but 1638 units in a different table. It appears that Prince and web browsers on Linux use the first value while web browsers on Windows use the second value.

It is a bit awkward to fix this as it is technically a bug in the font.

Edit: oops, maybe Prince uses the second value and Windows uses the first value. Same problem, though.

Edited 20 Jan 2016 by mikeday

My mistake: the values are consistent, but the font descender value is positive, when it is supposed to be negative, and different systems may handle this situation in a different way. We will investigate further.

We can emulate the Windows behaviour by negating the font descender if it is positive, we may do this in a future release of Prince.

Thanks mikeday

We have made this change in the Prince latest builds, thanks for letting us know about the issue.