[HarfBuzz] Launched: fontdiff

Sascha Brawer sascha at google.com
Wed May 25 19:07:07 UTC 2016

Hi all,

we just released the fontdiff <https://github.com/googlei18n/fontdiff>, a
small utility for testing fonts. When you modify a TrueType or OpenType
font, fontdiff generates a PDF showing the typeset text both before and
after the change. You can use this PDF to easily review the changes and
spot any errors caused by a font switch. For every line in the text sample,
the tool renders two raster images in high resolution. One image is typeset
using the original font, and the second uses the new font. If there is any
difference between these two high-resolution images (even if it’s just
whitespace caused by kerning changes), the output PDF highlights the
difference in color.

[image: Inline image 1]

* <https://github.com/googlei18n/fontdiff>*
— Sascha

Sascha Brawer · sascha at google.com · sascha at brawer.ch
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